VISUAL BASIC 6 - HÀM VÀ VÍ DỤ

7/30/2019 VISUAL BASIC 6 - HM V V D

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Exam CHAPTER 1

HM ABS

Dim MyNumber

MyNumber = Abs(50.3)

MyNumber = Abs(-50.3)

HM ARRAY

Dim MyWeek, MyDay

MyWeek = Array("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun")

MyDay = MyWeek(2)

MyDay = MyWeek(4)

HM ASC

Dim MyNumber

MyNumber = Asc("A")

MyNumber = Asc("a")MyNumber = Asc("Apple")

HM ASC

Dim pi

pi = 4 * Atn(1)

MsgBox pi

HM CALLBYNAME

Private Sub Command1_Click()

CallByName Text1, "MousePointer", VbLet, vbCrosshair

Result = CallByName(Text1, "MousePointer", VbGet)CallByName Text1, "Move", VbMethod, 100, 100

End Sub

HM CHOOSE


i = GetChoice(2)

MsgBox i

End Sub

Function GetChoice(Ind As Integer)

GetChoice = Choose(Ind, "Speedy", "United", "Federal")End Function


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HM CHR


Dim MyChar

MyChar = Chr(65)

MyChar = Chr(97)

MyChar = Chr(62)

MyChar = Chr(37)

End Sub

HM COS


Dim MyAngle, MySecant

MyAngle = 1.3

MySecant = 1 / Cos(MyAngle)

MsgBox MySecant

End Sub

HM CREATEOBJECT


Dim Conn, Rst

Dim strData As String, strCon As String

Set Conn = CreateObject("ADODB.Connection")

Set Rst = CreateObject("ADODB.Recordset")

strCon= "Provider=Microsoft.Jet.OLEDB.3.51;"

strCon=strConn &"Persist Security Info=False;"

strCon=strConn&"Data Source=C:\Northwind.mdb"

Conn.Open strCon

Rst.CursorLocation = 3

Rst.Open "Select * from Customers", Conn, 0, 3

If Rst.RecordCount > 0 Then

Rst.MoveFirst

Do Until Rst.EOF

strData = strData & Rst("CompanyName")

Rst.MoveNext

Loop

End If

Rst.Close

Conn.Close

Set Rst = Nothing


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Set Conn = Nothing

End Sub

HM CURDIR


Dim strPath As String

strPath = CurDir()

MsgBox strPath

End Sub


Dim strPath As String

strPath = App.Path()

MsgBox strPath

End Sub

HM DATE


MsgBox Date$

MsgBox Date

End Sub

HM DATEADD


Dim FirstDate As Date

Dim IntervalType As String

Dim Number As Integer

Dim Msg As String

IntervalType = "m"

FirstDate = Date

Number= InputBox("Enter number of months to add")

Msg = "New date: " & DateAdd(IntervalType, Number, FirstDate)

MsgBox Msg

IntervalType = "d"

Number = InputBox("Enter number of day to add")

Msg = "New date: " & DateAdd(IntervalType, Number, FirstDate)

MsgBox Msg

End Sub

HM DATEDIFF

Dim TheDate As Date

Dim Msg

TheDate = InputBox("Enter a date")


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Msg = "Days from today: " & DateDiff("d", Now, TheDate)

MsgBox Msg

HM DATEPART

Dim TheDate As Date

Dim Msg

TheDate = InputBox("Enter a date")

Msg = "Quarter: " & DatePart("q", TheDate)

MsgBox Msg

HM DATESERIAL


Dim MyDate

MyDate = DateSerial(1969, 2, 12)

MsgBox MyDate

MyDate = DateSerial(1969, 35, 12)

MsgBox MyDate

MyDate = DateSerial(1990 - 10, 8 - 2, 1 - 1)

MsgBox MyDate

End Sub

HM DATEVALUE


Dim MyDate

MyDate = DateValue("February 12, 1969")

MsgBox MyDate

MyDate = DateValue("Feb 12, 1999")

MsgBox MyDate

MyDate = DateValue("25/12/2000")

MsgBox MyDate

MyDate = DateValue("28-12-2003")

MsgBox MyDate

MyDate = DateValue("28-Apr-2004") + 2

MsgBox MyDate

End Sub

HM DAY


Dim MyDate, MyDay

MyDate = #12/25/2004#

MyDay = Day(MyDate)

MsgBox MyDay


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MyDate = #12/25/2004#

MyDay = Day(MyDate)

MsgBox MyDay

End Sub

HM DDB


Dim Fmt, InitCost, SalvageVal

Dim MonthLife, LifeTime

Dim DepYear, Depr

Const YRMOS = 12

Fmt = "###,##0.00"

InitCost = InputBox("Nhp tr gi ban u ca ti sn?")

SalvageVal = InputBox("Nhp tr gi cui cng ca ti sn.")

MonthLife = InputBox("Nhp tr gi thng s dng?")

Do While MonthLife < YRMOS

MsgBox " THi gian ca ti sn phi trn 1 nm."

MonthLife = InputBox("Nhp tr gi thng s dng?")

Loop

LifeTime = MonthLife / YRMOS

If LifeTime Int(MonthLife / YRMOS) Then

LifeTime = Int(LifeTime + 1)

End If

DepYear = CInt(InputBox("Nhp s nm tnh khu hao."))

Do While DepYear < 1 Or DepYear > LifeTime

MsgBox "Bn phi nhp t nht 1 " & " nm nhng khng ln hn " & LifeTime

DepYear = InputBox("Nhp s nm tnh khu hao.")

Loop

Depr = DDB(InitCost, SalvageVal, LifeTime, DepYear)

MsgBox "Khu hao l " & DepYear & " is " & Format(Depr, Fmt) & "."

End Sub

HM DIR


Dim MyFile, MyPath, MyName

MyPath = "c:\"

If MyName "." And MyName ".." Then

If (GetAttr(MyPath & MyName) And vbDirectory) = vbDirectory Then

Debug.Print MyName

End If


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End If

MyName = Dir

Loop

End Sub

HM DOEVENTS


Form2.Show

Dim I, OpenForms

For I = 1 To 150000

If I Mod 1000 = 0 Then

OpenForms = DoEvents

End If

Next I

MsgBox OpenForms

End Sub

HM ENVIRON


Dim EnvString, Indx, Msg, PathLen

Indx = 1

Do

EnvString = Environ(Indx)

If Left(EnvString, 5) = "PATH=" Then

PathLen = Len(Environ("PATH"))

Msg = "PATH entry = " & Indx & " and length = " & PathLen

Exit Do

Else

Indx = Indx + 1

End If

Loop Until EnvString = ""

If PathLen > 0 Then

MsgBox Msg

Else

MsgBox "No PATH environment variable exists."

End If

End Sub


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HM EOF


Dim InputData

Open "C:\arrays.cs" For Input As #1

Do While Not EOF(1)

Line Input #1, InputData

Debug.Print InputData

Loop

Close #1

End Sub

HM ERROR


On Error Goto myErr

Dim InputData

Open "C:\arrays.cs" For Input As #1

Do While Not EOF(1)

Line Input #1, InputData

Debug.Print InputData

Loop

Close #1

Exit Sub

myErr:

Debug.Print Error(Err.Number)

End Sub

HM EXP


Dim MyAngle, MyHSin

MyAngle = 1.3

MyHSin = (Exp(MyAngle) - Exp(-1 * MyAngle)) / 2

MsgBox MyHSin

End Sub

HM FILEATTR


On Error Resume Next

Dim FileNum, Mode, Handle

FileNum = 1

Open "C:\arrays.cs" For Append As FileNum

Mode = FileAttr(FileNum, 1)


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Handle = FileAttr(FileNum, 2)

Close FileNum

MsgBox Handle

MsgBox Mode

End Sub

HM FILEDATETIME



Dim MyStamp

MyStamp = FileDateTime("C:\AUTOEXEC.BAT")

MsgBox MyStamp

End Sub

HM FILELEN



Dim MySize

MySize = FileLen("C:\logo_RCV.gif")

MsgBox MySize

End Sub

HM FORMAT



Dim MyTime, MyDate, MyStr

MyTime = #5:04:23 PM#

MyDate = #1/27/1993#

MyStr = Format(Time, "Long Time")

MsgBox MyStr

MyStr = Format(Date, "Long Date")

MsgBox MyStr

MyStr = Format(MyTime, "h:m:s")

MsgBox MyStr

MyStr = Format(MyTime, "hh:mm:ss AMPM")

MsgBox MyStr

MyStr = Format(MyDate, "dddd, mmm d yyyy")

MsgBox MyStr

MyStr = Format(23)

MsgBox MyStr

MyStr = Format(5459.4, "##,##0.00")


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MsgBox MyStr

MyStr = Format(334.9, "###0.00")

MsgBox MyStr

MyStr = Format(5, "0.00%")

MsgBox MyStr

MyStr = Format("HELLO", "")

MsgBox MyStr

End Sub

HM FORMATCURRENCY



Dim cr, st

cr = 100000.23

st = FormatCurrency(cr, 2, vbTrue)

MsgBox st

cr = 0.23

st = FormatCurrency(cr, 2, vbFalse)

MsgBox st

st = FormatCurrency(cr, 2, vbTrue)

MsgBox st

cr = -100000.23

st = FormatCurrency(cr, 2, vbTrue, vbTrue)

MsgBox st

st = FormatCurrency(cr, 2, vbTrue, vbFalse)

MsgBox st

st = FormatCurrency(cr,2,vbTrue,vbFalse,vbTrue)

MsgBox st

st = FormatCurrency(cr,2,vbTrue,vbFalse,vbFalse)

MsgBox st

End Sub

HM FORMATDATETIME



Dim dstr, st

dstr = Date

st = FormatDateTime(dstr, vbGeneralDate)


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MsgBox st

st = FormatDateTime(dstr, vbLongDate)

MsgBox st

st = FormatDateTime(dstr, vbLongTime)

MsgBox st

st = FormatDateTime(dstr, vbShortDate)

MsgBox st

st = FormatDateTime(dstr, vbShortTime)

MsgBox st

End Sub

HM FORMATNUMBER



Dim cr, st

cr = 100000.23

st = FormatNumber(cr, 2, vbTrue)

MsgBox st

cr = 0.23

st = FormatNumber(cr, 2, vbFalse)

MsgBox st

st = FormatNumber(cr, 2, vbTrue)

MsgBox st

cr = -100000.23

st = FormatNumber(cr, 2, vbTrue, vbTrue)

MsgBox st

st = FormatNumber(cr, 2, vbTrue, vbFalse)

MsgBox st

st = FormatNumber(cr, 2, vbTrue, vbFalse, vbTrue)

MsgBox st

st = FormatNumber(cr, 2, vbTrue, vbFalse, vbFalse)

MsgBox st

End Sub

HM FORMATPERCENT



Dim cr, st

cr = 0.215

st = FormatPercent (cr, 2, vbTrue)


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MsgBox st

cr = 0.035

st = FormatPercent (cr, 2, vbFalse)

MsgBox st

st = FormatPercent (cr, 2, vbTrue)

MsgBox st

cr = -0.3

st = FormatNumber(cr, 2, vbTrue, vbTrue)

MsgBox st

st = FormatPercent (cr, 2, vbTrue, vbFalse)

MsgBox st

st = FormatPercent (cr, 2, vbTrue, vbFalse, vbTrue)

MsgBox st

st = FormatPercent (cr, 2, vbTrue, vbFalse, vbFalse)

MsgBox st

End Sub

HM FREEFILE



Dim MyIndex, FileNumber

For MyIndex = 1 To 5

FileNumber = FreeFile

Open "TEST" & MyIndex For Output As #FileNumber

Write #FileNumber, "This is a sample."

Close #FileNumber

Next MyIndex

End Sub

HM FV



Dim Fmt, Payment, APR, TotPmts

Dim PayType, PVal, FVal

Const ENDPERIOD = 0, BEGINPERIOD = 1

Fmt = "###,###,##0.00"

Payment = InputBox("Mi thng gi bao nhiu ?)

APR = InputBox("Li sut tin gi.")

If APR > 1 Then APR = APR / 100

TotPmts = InputBox("S thng gi")


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PayType = MsgBox("G tin vo cui thng?", vbYesNo)

If PayType = vbNo Then

PayType = BEGINPERIOD

Else

PayType = ENDPERIOD

End If

PVal = InputBox("S tin hin hnh")

FVal = FV(APR / 12, TotPmts, Payment, PVal, PayType)

MsgBox "Tin s nhn c trong tng lai " & Format(FVal, Fmt) & "."

End Sub

HM GETALLSETTINGS



Dim MySet As Variant

Dim intSettings As Integer

SaveSetting appname:="MyApp", section:="Startup", Key:="Top", setting:=75

SaveSetting "MyApp", "Startup", "Left", 50

MySet = GetAllSettings(appname:="MyApp", section:="Startup")

For intSettings = LBound(MySet, 1) To UBound(MySet, 1)

Debug.Print MySet (intSettings, 0), MySettings(intSettings, 1)

Next intSettings

DeleteSetting "MyApp", "Startup"

End Sub

HM GETATTR



Dim MyAttr

MyAttr = GetAttr("TESTFILE")

Debug.Print MyAttr And vbHidden

MyAttr = GetAttr("TESTFILE")

Debug.Print MyAttr And (vbHidden + vbReadOnly)

MyAttr = GetAttr("MYDIR")

Debug.Print MyAttr

End Sub


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HM GETAUTOSERVERSETTINGS



Dim oRegClass As New RegClass

Dim vRC As Variant

vRC = oRegClass.GetAutoServerSettings("HelloProj.HelloClass")

If Not (IsEmpty(vRC)) Then

If vRC(1) Then

MsgBox "Hello is registered remotely on a " & "server named: " & vRC(1)

Else

MsgBox "Hello is registered locally."

End If

End If

End Sub

HM GETSETTING



SaveSetting appname:="MyApp", section:="Startup", Key:="Top", setting:=75

SaveSetting "MyApp", "Startup", "Left", 50

Debug.Print GetSetting(appname := "MyApp", section := "Startup", _ key := "Left", default := "25")

DeleteSetting "MyApp", "Startup"

End Sub

HM HEX



Dim MyHex

MyHex = Hex(5)

MyHex = Hex(10)

MyHex = Hex(459)

End Sub

HM HOUR



Dim MyTime, MyHour

MyTime = #4:35:17 PM#

MyHour = Hour(MyTime)

End Sub


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HM IIF


result = CheckIt(5000)

End Function

Function CheckIt(TestMe As Integer)

CheckIt = IIf(TestMe > 1000, "Large", "Small")

End Function

HM INPUT


Dim MyChar

Open "TESTFILE" For Input As #1

Do While Not EOF(1)

MyChar = Input(1, #1)

Debug.Print MyChar

Loop

Close #1

End Function

HM INPUTBOX


Dim Message, Title, Default, MyValue

Message = "Enter a value between 1 and 3"

Title = "InputBox Demo"

Default = "1"

MyValue = InputBox(Message, Title, Default)

MyValue = InputBox(Message, Title, , , , "DEMO.HLP", 10)

MyValue = InputBox(Message, Title, Default, 100, 100)

End Sub

HM INSTR


Dim SearchString, SearchChar, MyPos

SearchString = "http://www.My.Opera.Com/ManMan89"

SearchChar = "h"

MyPos = InStr(13, SearchString, SearchChar, 1)

MyPos = InStr(2, SearchString, SearchChar, 0)

MyPos = InStr(SearchString, SearchChar)

MyPos = InStr(1, SearchString, "W")

End Sub


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HM INSTRREV


Dim StrCheck, StrMatch, MyPos

StrCheck = "phamhuukhang"

StrMatch = "h"

MyPos = InStrRev(StrCheck, StrMatch, 4, 1)

MsgBox MyPos


MsgBox MyPos


MsgBox MyPos

End Sub

HM INT V FIX


Dim MyNumbe

MyNumber = Int(99.8)

MyNumber = Fix(99.2)

MyNumber = Int(-99.8)

MyNumber = Fix(-99.8)

MyNumber = Int(-99.2)

MyNumber = Fix(-99.2)

End Sub

HM IPMT



Dim FVal, Fmt, PVal, APR, TotPmts, PayType

Dim Period, IntPmt, TotInt, Msg


FVal = 0

Fmt = "###,###,##0.00"

PVal = InputBox( "S tin bn vay?")

APR = InputBox("T gi tng k tr?")


TotPmts = InputBox("S thng cn tr?")

PayType = MsgBox("Bn mun tr cui thng?", vbYesNo)



Else


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PayType = ENDPERIOD

End If

For Period = 1 To TotPmts

IntPmt = IPmt(APR / 12, Period, TotPmts, PVal, FVal, PayType)

TotInt = TotInt + IntPmt

Next Period

Msg = Format(TotInt, Fmt)

Msg = Msg & " in interest for this loan."

MsgBox Msg

End Sub

HM ISARRAY



Dim MyArray(1 To 5) As Integer

DimYourArray, MyCheck

YourArray = Array(1, 2, 3)

MyCheck = IsArray(MyArray)

MyCheck = IsArray(YourArray)

End Sub

HM ISDATE



Dim MyDate, YourDate, NoDate, MyCheck

MyDate = "February 12, 1969"

YourDate = #2/12/1969#

NoDate = "Hello"

MyCheck = IsDate(MyDate)

MyCheck = IsDate(YourDate)

MyCheck = IsDate(NoDate)

End Sub

HM ISEMPTY



Dim MyVar, MyCheck

MyCheck = IsEmpty(MyVar)

MyVar = Null


MyVar = Empty


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End Sub

HM ISERROR



Dim ReturnVal, MyCheck

UserFunction = CVErr(32767)

ReturnVal = UserFunction

MyCheck = IsError(ReturnVal)

End Sub

HM ISNULL



Dim MyVar, MyCheck

MyCheck = IsNull(MyVar)

MyVar = ""


MyVar = Null


End Sub

HM ISNUMERIC



Dim MyVar, MyCheck

MyVar = "53"

MyCheck = IsNumeric(MyVar)

MyVar = "459.95"


MyVar = "45 Help"


End Sub

HM ISOBJECT


Dim MyInt As Integer, YourObject, MyCheck

Dim MyObject As Object

Set YourObject = MyObject

MyCheck = IsObject(YourObject)

MyCheck = IsObject(MyInt)


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End Sub

HM JOIN


Dim MyWeek, MyDay

MyWeek = Array("Mon","Tue","Wed","Thu", "Fri", "Sat", "Sun")

MyDay = Join(MyWeek)

MsgBox MyDay

MyDay = Join(MyWeek, ",")

MsgBox MyDay

End Sub

HM LBOUND


Dim MyWeek, MinElement

MyWeek = Array("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun")

MinElement = LBound(MyWeek)

MsgBox MinElement

Dim A(1 To 100, 0 To 3, -3 To 4)

MinElement = LBound(A)

MsgBox MinElement

MinElement = LBound(A, 1)

MsgBox MinElement


MsgBox MinElement


MsgBox MinElement

End Sub

HM LCASE


Dim UpperCase, LowerCase

UpperCase = "Hello My.Opera.Com/ManMan89"

LowerCase = LCase(UpperCase)

MsgBox LowerCase

End Sub


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HM LEFT


Dim AnyString, MyStr

AnyString = "Hello World"

MyStr = Left(AnyString, 1)

MsgBox MyStr


MsgBox MyStr


MsgBox MyStr

End Sub

HM LEN


Type CustomerRecord

ID As Integer

Name As String * 10

Address As String * 30

End Type

Dim Customer As CustomerRecord

Dim MyInt As Integer, MyCur As Currency

Dim MyString, MyLen

MyString = "Hello World"

MyLen = Len(MyInt)

MyLen = Len(Customer)

MyLen = Len(MyString)

MyLen = Len(MyCur)

End Sub

HM LOADPICTURE


Dim Msg As String


Height = 3990

Width = 4890

Picture1.Picture = LoadPicture("PAPER.CUR", vbLPCustom, vbLPColor, 32, 32)

If Err Then

MsgBox Msg

Exit Sub

End If


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Msg = "Choose OK to clear the bitmap from the picturebox."

MsgBox Msg

Picture1.Picture = LoadPicture()

End Sub

HM LOC


Dim MyLocation, MyLine

Open "TESTFILE" For Binary As #1

Do While MyLocation < LOF(1)

MyLine = MyLine & Input(1, #1)

MyLocation = Loc(1)

Debug.Print MyLine; Tab; MyLocation

Loop

Close #1

End Sub

HM LOF


Dim FileLength

Open "TESTFILE" For Input As #1

FileLength = LOF(1)

Close #1

End Sub

HM LOG


Dim MyAngle, MyLog

MyAngle = 1.3

MyLog = Log(MyAngle + Sqr(MyAngle * MyAngle + 1))

End Sub

HM LTRIM, RTRIM, TRIM


Dim MyString, TrimString

MyString = ""

TrimString = LTrim(MyString)

TrimString = RTrim(MyString)

TrimString = LTrim(RTrim(MyString))

TrimString = Trim(MyString)

End Sub


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HM MID




MyStr = Mid(AnyString, 7,1)

MsgBox MyStr

MyStr = Mid(AnyString, 7,6)

MsgBox MyStr

MyStr = Mid(AnyString, 7)

MsgBox MyStr

End Sub

HM MINUTE



Dim MyTime, MyMinute

MyTime = #4:35:17 PM#

MyMinute = Minute(MyTime)

End Sub

HM MONTH


Dim MyDate, MyMonth

MyDate = #11/25/2004#

MyMonth = Month(MyDate)

MsgBox MyMonth

MyDate = #12/25/2004#

MyMonth = Month(MyDate)

MsgBox MyMonth

End Sub

HM MONTHNAME


Dim MyDate, MyMonth

MyDate = #11/25/2004#

MyMonth = MonthName(Month(MyDate)) : MsgBox MyMonth

MyDate = #12/25/2004#

MyMonth = MonthName(Month(MyDate), True)

MsgBox MyMonth

End Sub


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HM MSGBOX


Dim Msg, Style, Title, Help, Ctxt, Response, MyString

Msg = "Do you want to continue ?"

Style = vbYesNo + vbCritical + vbDefaultButton2

Title = "MsgBox Demonstration"

Help = "DEMO.HLP"

Ctxt = 1000

Response = MsgBox(Msg, Style, Title, Help, Ctxt)

If Response = vbYes Then

MyString = "Yes"

Else

MyString = "No"

End If

End Sub

HM NOW


Dim myCurrTime

myCurrTime = Now

MsgBox myCurrTime

End Sub

HM NPER

Dim FVal, PVal, APR, Payment

Dim PayType, TotPmts


FVal = 0

PVal = InputBox("S tin bn cn vay?")

APR = InputBox("T gi?")


Payment = InputBox("Tr bao nhiu trong mt thng?")

PayType = MsgBox("Tr vo cui thng?", vbYesNo)



Else

PayType = ENDPERIOD

End If

TotPmts = NPer(APR / 12, -Payment, PVal, FVal, PayType)

If Int(TotPmts) TotPmts Then


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TotPmts = Int(TotPmts) + 1

End If

MsgBox "Bn phi " & TotPmts & " thng."

HM NPV


Dim Fmt, Guess, RetRate, NetPVal, Msg

Static Values(5) As Double

Fmt = "###,##0.00"

RetRate = 0.0625

Values(0) = -70000

Values(1) = 22000

Values(2) = 25000

Values(3) = 28000

Values(4) = 31000

NetPVal = NPV(RetRate, Values())

Msg = "NPV l "

Msg = Msg & Format(NetPVal, Fmt) & "."

MsgBox Msg

End Sub

HM OCT


Dim MyOct

MyOct = Oct(4)

MyOct = Oct(8)

MyOct = Oct(459)

End Sub

HM PMT


Dim Fmt, FVal, PVal, APR, TotPmts

DimPayType, Payment


Fmt = "###,###,##0.00"

FVal = 0

PVal = InputBox("S tin vay?")

APR = InputBox("Li sut?")


TotPmts = InputBox("Tr bao nhiu thng?")

PayType = MsgBox("Tr vo cui thng", vbYesNo)


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Else

PayType = ENDPERIOD

End If

Payment = Pmt(APR / 12, TotPmts, -PVal, FVal, PayType)

MsgBox "Bn phi tr " & Format(Payment, Fmt) & " cho mi thng."

End Sub

HM PPMT


Dim NL, TB, Fmt, FVal, PVal, APR

Dim TotPmts, PayType, Payment

Dim Msg, MakeChart, Period, P, I


NL = Chr(13) & Chr(10)

TB = Chr(9)

Fmt = "###,###,##0.00"

FVal = 0

PVal = InputBox("S tin vay?")

APR = InputBox("Li sut?")


TotPmts = InputBox("Tr bao nhiu thng?")




Else

PayType = ENDPERIOD

End If

Payment = Abs(-Pmt(APR / 12, TotPmts, PVal, FVal, PayType))

Msg = "Tr hng thng " & Format(Payment, Fmt) & ". "

Msg = Msg & "Tnh s tin gc?"

MakeChart = MsgBox(Msg, vbYesNo)

If MakeChart vbNo Then

If TotPmts > 12 Then

MsgBox "Only first year will be shown."

Msg = "MonthPaymentPrincipalInterest" & NL

For Period = 1 To TotPmts

If Period > 12 Then Exit For


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P = PPmt(APR / 12, Period, TotPmts, -PVal, FVal, PayType)

P = (Int((P + 0.005) * 100) / 100)

I = Payment - P

I = (Int((I + 0.005) * 100) / 100)

Msg = Msg & Period & TB & Format(Payment, Fmt)

Msg = Msg & TB & Format(P, Fmt) & TB & Format(I, Fmt) & NL

Next Period

MsgBox Msg

End If

End Sub

HM PV


Dim Fmt, APR, TotPmts, YrIncome

DimFVal, PayType, PVal


Fmt = "###,##0.00"

APR = 0.1

TotPmts = 12

YrIncome = 50000

FVal = 1000000


PVal = PV(APR, TotPmts, -YrIncome, FVal, PayType)

MsgBox "Gi tr tng lai l " & Format(PVal, Fmt) & "."

End Sub

HM QBCOLOR

Sub ChangeBackColor(ColorCode As Integer, MyForm As Form)

MyForm.BackColor = QBColor(ColorCode)

End Sub

HM RATE


Dim Fmt, FVal, Guess, PVal

Dim Payment, TotPmts, PayType, APR


FVal = 0

Guess = 0.1

PVal = InputBox("Bn vay bao nhiu?")

Payment = InputBox("Tr bao nhiu thng?")

TotPmts = InputBox("Moi thang tra bao nhieu?")


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Else

PayType = ENDPERIOD

End If

APR = (Rate(TotPmts, -Payment, PVal, FVal, PayType, Guess) * 12) * 100

MsgBox "Li sut l " & Format(CInt(APR), Fmt) & " percent."

End Sub

HM REPLACE


Dim strSQL As String

strSQL = "Insert into Shippers"

End Sub

HM RGB


Dim RED, I, RGBValue, MyObject

RED = RGB(255, 0, 0)

I = 75

RGBValue = RGB(I, 64 + I, 128 + I)

MyObject.Color = RGB(255, 0, 0)

End Sub

HM RIGHT




MyStr = Right(AnyString, 1)

MsgBox MyStr


MsgBox MyStr


MsgBox MyStr

End Sub

HM RND


For I = 1 To 100

Randomize (I)

Debug.Print Rnd(I)


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Next I

End Sub

HM ROUND


Dim Amount

Amount = 15.1464

MsgBox Round(Amount, 3)

MsgBox Round(Amount, 2)

End Sub

HM SECOND



Dim MyTime, MyMinute

MyTime = #4:35:17 PM#

MyMinute = Second(MyTime)

End Sub

HM SEEK


Dim MyChar

Open "D:\Csharp\arrays.cs" For Input As #1

Do While Not EOF(1)

MyChar = Input(1, #1)

Debug.Print Seesk(1)

Loop

Close #1

End Sub

HM SGN


Dim MyVar1, MyVar2, MyVar3, MySign

MyVar1 = 12: MyVar2 = -2.4: MyVar3 = 0

MySign = Sgn(MyVar1)



End Sub

HM SHELL


Dim RetVal

RetVal = Shell("C:\WINDOWS\CALC.EXE", 1)


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End Sub

HM SIN


Dim MyAngle, MySecant

MyAngle = 1.3

MySecant = 1 / Sin(MyAngle)

MsgBox MySecant

End Sub

HM SLN



Dim MonthLife, LifeTime, PDepr

Const YEARMONTHS = 12

Fmt = "###,##0.00"

InitCost=InputBox("Gi tr ban u ca TS?")

SalvageVal=InputBox("Gi tr cn li ca TS?")

MonthLife = InputBox("S thng tnh khu hao?")

Do While MonthLife < YEARMONTHS

MsgBox "S thng ln hn v bng 1 nm."

MonthLife= InputBox("S thng tnh khu hao?")

Loop

LifeTime = MonthLife / YEARMONTHS

If LifeTime Int(MonthLife / YEARMONTHS) Then


End If

PDepr = SLN(InitCost, SalvageVal, LifeTime)

MsgBox "Gi tr khu hao l " & Format(PDepr, Fmt) & " per year."

End Sub

HM SPACE


Dim MyString

MyString = Space(10)

MyString = "Hello" & Space(10) & "World"

End Sub

HM SPLIT


Dim myString As String

Dim MyArr() As String


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Dim MyArrs() As String

Dim i As Integer

myString = "Welcome to Saigon"

MyArr = Split(myString)

For i = 0 To UBound(MyArr)

Debug.Print MyArr(i)

Next

myString = "Xin,chao,cac,ban"

MyArrs = Split(myString, ",", 1)

For i = 0 To UBound(MyArrs)

Debug.Print MyArrs(i)

Next

End Sub

HM SQR


Dim MySqr

MySqr = Sqr(4)

MySqr = Sqr(23)

MySqr = Sqr(0)

MySqr = Sqr(-4)

End Sub

HM STR


Dim MyString

MyString = Str(459)

MyString = Str(-459.65)

MyString = Str(459.001)

End Sub

HM STRCONV


Dim i As Long

Dim x() As Byte

x = StrConv("ABCDEFG", vbFromUnicode)

For i = 0 To UBound(x)

Debug.Print x(i)

Next

End Sub


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HM STRING


Dim MyString As String

MyString = String(5, "*")

Debug.Print MyString

MyString = String(5, 42)


MyString = String(10, "ABC")


End Sub



MyString = "ABC"

MyString = StrReverse(MyString)


End Sub

HM SYD



Dim MonthLife, LifeTime, DepYear, PDepr

Const YEARMONTHS = 12

Fmt = "###,##0.00"

InitCost= InputBox("Gi tr ban u ca ti sn?")

SalvageVal = InputBox (Gi tr cn li ca ti sn sau khi

kt thc thi k khu hao?")


Do While MonthLife < YEARMONTHS

MsgBox "i sng ca ti sn l 1 nm hay ln

hn."


Loop

LifeTime = MonthLife / YEARMONTHS

If LifeTime Int(MonthLife / YEARMONTHS) Then


End If

DepYear =CInt(InputBox("Gi tr khu hao ca nm?"))

Do While DepYear < 1 Or DepYear > LifeTime

MsgBox i sng ca ti sn l 1 nm hay ln hn " & LifeTime


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DepYear = CInt(InputBox("Gi tr khu hao ca nm?"))

Loop

PDepr =SYD(InitCost, SalvageVal, LifeTime, DepYear)

MsgBox "Khu hao nm " & DepYear & " l " & Format(PDepr, Fmt) & "."

End Sub

HM TAB


Open "C:\TESTFILE.txt" For Output As #1

Print #1, "Hello"; Tab(20); "World."

Print #1, "Hello"; Tab; "World"

Close #1

End Sub

HM TAN


Dim MyAngle, MyCotangent

MyAngle = 1.3

MyCotangent = 1 / Tan(MyAngle)

End Sub

HM TIME


Dim MyTime

MyTime = Time

End Sub

HM TIMESERIAL


Dim MyTime

MyTime = TimeSerial(16, 35, 17)

Debug.Print MyTime

MyTime = TimeSerial(19, -35, -17)

Debug.Print MyTime

End Sub

HM TIMEVALUE


Dim MyTime

MyTime = TimeValue("4:35:17 PM")

Debug.Print MyTime

MyTime = TimeValue("4:35:17 AM")

Debug.Print MyTime


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End Sub

HM TYPENAME


Dim NullVar, MyType, StrVar As String

Dim IntVar As Integer, CurVar As Currency

Dim ArrayVar(1 To 5) As Integer

NullVar = Null

MyType = TypeName(StrVar)

MyType = TypeName(IntVar)

MyType = TypeName(CurVar)

MyType = TypeName(NullVar)

MyType = TypeName(ArrayVar)

End Sub

HM UBOUND


Dim Upper

Dim MyArray(1 To 10, 5 To 15, 10 To 20)

Dim AnyArray(10)

Upper = UBound(MyArray, 1)

Upper = UBound(MyArray, 3)

Upper = UBound(AnyArray)

End Sub

HM UCASE


Dim Upper


MyString =Hello World

Upper = UCase(MyString)

End Sub

HM VAL


Dim MyValue

MyValue = Val("2457")+1

Debug.Print MyValue

MyValue = Val(" 2 45 7")

Debug.Print MyValue

MyValue = Val("24 and 57")

Debug.Print MyValue


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MyValue = Val("A 24 and 57")

Debug.Print MyValue

MyValue = Val("")

Debug.Print MyValue

End Sub

HM WEEKDAY


Dim MyDate, MyWeekDay

MyDate = #2/12/1969#

MyWeekDay = Weekday(MyDate)

Debug.Print MyWeekDay

MyWeekDay = Weekday(Date)

Debug.Print MyWeekDay

End Sub

HM WEEKDAYNAME


Dim MyDate, MyWeekDay

MyWeekDay = 4

MyDate = WeekdayName(MyWeekDay)

Debug.Print MyDate

MyDate = WeekdayName(6, True)

Debug.Print MyDate

End Sub

HM YEAR


Dim MyDate, MyYear

MyDate = #2/12/2003#

MyYear = Year(MyDate)

Debug.Print MyDate

End Sub

Exam CHAPTER 2

KHAI BAO APPACTIVATEPrivate Sub Command1_Click()

Dim MyAppID, ReturnValue

AppActivate "Microsoft Word"

MyAppID = Shell("C:\WORD\WINWORD.EXE", 1)

AppActivate MyAppID

ReturnValue = Shell("c:\EXCEL\EXCEL.EXE", 1)


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AppActivate ReturnValue

End Sub

KHAI BAO BEEP


Dim Str As String

Str = "Welcome to My.Opera.Com/ManMan89"

Beep

End Sub

KHAI BAO CALL


Dim str As String

str = " My.Opera.Com/ManMan89"

ABC()

Call ABCD(str)

Dim i As Integer

I=XYZ

End Sub

Sub ABC()

MsgBox "Welcome to My.Opera.Com/ManMan89"

End Sub

Sub ABCD(ByVal strname As String)

MsgBox " Welcome to " & strname

End Sub

Function XYZ() As Integer

XYZ = 10

End Function

KHAI BAO CHDIR


ChDir "MYDIR"

ChDir "D:\WINDOWS\SYSTEM"

End Sub

KHAI BAO CHDRIVE


ChDrive ""

ChDrive "D:\"

End Sub


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KHAI BAO CLOSE


Dim I, FileName

For I = 1 To 3

FileName = "TEST" & I

Open FileName For Output As #I

Print #I, "This is a test."

Next I

Close

End Sub

Function getDBInfo() As String

On Error GoTo err

Dim f As Integer

Dim strWord As String

f = FreeFile

Open App.Path & "\config.ini" For Input As f

Do While Not EOF(f)

Line Input #f, strWord

Loop

Close f

getDBInfo = strWord

Exit Function

err:

getDBInfo = Error

End Function

KHAI BAO CONST

Const MyVar = 459

Public Const MyString = "HELP"

Private Const MyInt As Integer = 5

Const MyStr = "Hello", MyDouble As Double = 3.4567

Private Const myBoolean As Boolean = True


Debug.Print MyVar

Debug.Print MyInt

Debug.Print MyStr

Debug.Print MyDouble


End Sub


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KHAI BAO DECLARE

Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As

Long) As Long


Dim sbuf As String, nl As Integer

Dim Uname As String

sbuf = String$(10, 0)

nl = GetUserName(sbuf, 10)

Uname = UCase(sbuf)

If Uname "" Then

MsgBox ("Username: " & Uname)

End If

End Sub

KHAI BAO DELETESETTING


SaveSetting appname:="My.Opera.Com/ManMan89", section:="Startup", Key:="Top", setting:=75

SaveSetting "My.Opera.Com/ManMan89", "Startup", "Left", 50

DeleteSetting "My.Opera.Com/ManMan89", "Startup"

End Sub

KHAI BAO DIM


Dim AnyValue, MyValue


Dim AnotherVar, Choice As Boolean

Dim DayArray(50)

Dim Matrix(3, 4) As Integer

Dim MyMatrix(1 To 5, 4 To 9, 3 To 5) As Double

Dim BirthDay(1 To 10) As Date

Dim MyArray()

End Sub

KHAI BAO DO..LOOP


Dim Check, Counter

Check = True: Counter = 0

Do

Do While Counter < 20

Counter = Counter + 1

Debug.Print Counter


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If Counter = 10 Then

Check = False

Exit Do

End If

Loop

Loop Until Check = False

End Sub

KHAI BAO END


Dim Password, Pword

Password = "123456"

Pword = InputBox("Type in your password")

If Pword Password Then

MsgBox "Sorry, incorrect password"

End

End If

End Sub

KHAI BAO ERASE


Dim NumArray(10) As Integer

Dim StrVarArray(10) As String

Dim StrFixArray(10) As String * 10

Dim VarArray(10) As Variant

Dim DynamicArray() As Integer

ReDim DynamicArray(10)

Erase NumArray

Erase StrVarArray

Erase StrFixArray

Erase VarArray

Erase DynamicArray

End Sub

KHAI BAO ERROR



Error 11

Debug.Print Err.Description

Debug.Print Err.Source

Debug.Print Err.Number


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End Sub

KHAI BAO EXIT


Dim I, MyNum

Do

For I = 1 To 1000

MyNum = Int(Rnd * 1000)

Select Case MyNum

Case 7: Exit For

Case 29: Exit Do

Case 54: Exit Sub

End Select

Next I

Loop

End Sub

KHAI BAO FILECOPY


Dim SourceFile, DestinationFile

SourceFile = "C:\CONFIG.SYS"

DestinationFile = "D:\CONFIG.SYS"

FileCopy SourceFile, DestinationFile

End Sub

KHAI BAO FOR EACH..NEXT


Dim Found, MyObject, MyCollection

Found = False

For Each MyObject In MyCollection

If MyObject.Text = "Hello" Then

Found = True

Exit For

End If

Next

End Sub

KHAI BAO FOR..NEXT


Dim Words, Chars, MyString

For Words = 10 To 1 Step -1

For Chars = 0 To 9


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MyString = MyString & Chars

Next Chars

MyString = MyString & " "


Next Words

End Sub

KHAI BAO FUNCTION

Function CalculateSquareRoot( NumberArg As Double) As Double

If NumberArg < 0 Then

Exit Function

Else

CalculateSquareRoot = Sqr(NumberArg)

End If

End Function

Function CalSum (ByVal FirstArg As Integer, ParamArray OtherArgs()) As Integer

If FirstArg < 0 Then

Exit Function

Else

CalSum = FirstArg+Total

End If

End Function

Function MyFunc(MyArg As Integer, Optional MyArg1 As Integer = 5, Optional MyArg2 = 10) As Integer

MyFunc MyArg + MyArg1 + MyArg2

End Function


Debug.Print CalculateSquareRoot(10)

Debug.Print CalSum(10, 1, 2, 3, 4, 5)

Dim RetVal

RetVal = MyFunc(1, 2, 2)

Debug.Print RetVal

RetVal = MyFunc(1, , 5)

Debug.Print RetVal

RetVal = MyFunc(MyArg:=10, MyArg2:=7)

Debug.Print RetVal

RetVal = MyFunc(1)

Debug.Print RetVal

End Sub


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KHAI BAO GOTO


Dim Number, MyString

Number = 1

If Number = 1 Then

GoTo Line1

Else

GoTo Line2

End If

Line1:

MyString = "Number equals 1"

GoTo LastLine

Line2:

MyString = "Number equals 2"

LastLine:


End Sub

PHAT BIEU DIEU KHIEN IF..THEN..ELSE..END IF


Dim A, B, C

A = InputBox("Please enter value of A:")

If IsNumeric(A) Then A = A + 1: B = B + A: C = C + B

Debug.Print A

B = InputBox("Please enter value of B:")

If B > 0 Then

A = A + B

ElseIf B = 0 Then

A = A - B

Else

A = B

End If

End Sub

KHAI BAO INPUT #


Dim MyString, MyNumber

Open "C:\TESTFILE.txt" For Input As #1

Do While Not EOF(1)

Input #1, MyString, MyNumber


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Debug.Print MyString, MyNumber

Loop

Close #1

End Sub

KHAI BAO KILL


Kill "C:\TestFile.txt"

Kill "C:\*.TXT"

End Sub

KHAI BAO LINE INPUT #


Dim MyString


Do While Not EOF(1)

Line Input #1, MyString


Loop

Close #1

End Sub

KHAI BAO LOAD


Dim Answer, Msg As String

Unload Form1

Msg = "Form1 cha nap. "

Msg = Msg & "Chon Yes neu nap vao hien thi form "

Msg = Msg & "CHon No nap form vao khong hien thi."

Answer = MsgBox(Msg, vbYesNo)

If Answer = vbYes Then

Show

Else

Load Form1

Msg = "Form1 ao nap. "

Msg = Msg & "Chon OK e hien thi form."

MsgBox Msg

Show

End If

End Sub

KHAI BAO LOCK, UNLOCK


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Dim MyRecord As Record, RecordNumber

Open "C:\TESTFILE.txt" For Random Shared As #1 Len = Len(MyRecord)

RecordNumber = 4

Lock #1, RecordNumber

Get #1, RecordNumber, MyRecord

MyRecord.ID = 234

MyRecord.Name = "John Smith"

Put #1, RecordNumber, MyRecord

Unlock #1, RecordNumber

Close #1

End Sub

KHAI BAO MID


Dim MyString

MyString = "The dog jumps"


Mid(MyString, 5, 3) = "fox"


Mid(MyString, 5) = "cow"


Mid(MyString, 5) = "cow jumped over"


Mid(MyString, 5, 3) = "duck"


End Sub

KHAI BAO MKDIR


Dim MyFolder

MyFolder = "C:\myVb6"

MkDir MyFolder

End Sub

KHAI BAO NAME


Dim OldName, NewName

OldName = "OLDFILE": NewName = "NEWFILE"

Name OldName As NewName

OldName = "C:\MYDIR\OLDFILE"


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NewName = "C:\YOURDIR\NEWFILE"

Name OldName As NewName

End Sub

KHAI BAO ON ERROR


On Error GoTo ErrorHandler

Open "TESTFILE" For Output As #1

Kill "TESTFILE"

On Error GoTo 0


ObjectRef = GetObject("MyWord.Basic")

If err.Number = 440 Or err.Number = 432 Then

Msg = "There was an error attempting to open "

Msg = Msg & "the Automation object!"

MsgBox Msg, , "Deferred Error Test"

err.Clear

End If

Exit Sub

ErrorHandler:

Select Case err.Number

Case 55

Close #1

Case Else

End Select

Resume

End Sub

KHAI BAO OPEN


Dim MyString


Do While Not EOF(1)

Line Input #1, MyString


Loop

Close #1

End Sub


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KHAI BAO OPTION BASE

Option Base 1


Dim Lower

Dim MyArray(20), TwoDArray(3, 4)

Dim ZeroArray(0 To 5)

Lower = LBound(MyArray)

Debug.Print Lower

Lower = LBound(TwoDArray, 1)

Debug.Print Lower

Lower = LBound(TwoDArray, 2)

Debug.Print Lower

Lower = LBound(ZeroArray)

Debug.Print Lower

End Sub

KHAI BAO PRINT #



Print #1, "This is a test"

Print #1,

Print #1, "Zone 1"; Tab; "Zone 2"

Print #1, "Hello"; " "; "World"

Print #1, Spc(5); "5 leading spaces "

Print #1, Tab(10); "Hello"

Dim MyBool, MyDate, MyNull, MyError

MyBool = False: MyDate = #2/12/1969#

MyNull = Null: MyError = CVErr(32767)

Print #1, MyBool; " is a Boolean value"

Print #1, MyDate; " is a date"

Print #1, MyNull; " is a null value"

Print #1, MyError; " is an error value"

Close #1

End Sub

KHAI BAO PUBLIC

Public piAs Integer




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Number=5

piAs=100+ Number

End Sub




Number=15

piAs= piAs + Number

End Sub

KHAI BAO PUT

Type Record

ID As Integer

Name As String * 20

End Type


Dim MyRecord As Record, RecordNumber

Open "TESTFILE" For Random As #1 Len = Len(MyRecord)

For RecordNumber = 1 To 5

MyRecord.ID = RecordNumber

MyRecord.Name = "My Name" & RecordNumber

Put #1, RecordNumber, MyRecord

Next RecordNumber

Close #1

End Sub

KHAI BAO RAISEEVENT

Private WithEvents mText As TimerState


Text1.Text = "From Now"

Text1.Refresh

Text2.Text = "0"

Text2.Refresh

Call mText.TimerTask(9.84)

End Sub

Private Sub Form_Load()

Command1.Caption = "Click to Start Timer"

Text1.Text = ""

Text2.Text = ""


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Label1.Caption ="The fastest 100 meters ever run took this long:"

Set mText = New TimerState

End Sub

Private Sub mText_ChangeText()

Text1.Text = "Until Now"

Text2.Text = "9.84"

End Sub

Private Sub mText_UpdateTime(ByVal dblJump As Double)

Text2.Text = Str(Format(dblJump, "0"))

DoEvents

End Sub

Option Explicit

Public Event UpdateTime(ByVal dblJump As Double)

Public Event ChangeText()

Public Sub TimerTask(ByVal Duration As Double)

Dim dblStart As Double

Dim dblSecond As Double

Dim dblSoFar As Double

dblStart = Timer

dblSoFar = dblStart

Do While Timer < dblStart + Duration

If Timer - dblSoFar >= 1 Then

dblSoFar = dblSoFar + 1

RaiseEvent UpdateTime(Timer - dblStart)

End If

Loop

RaiseEvent ChangeText

End Sub

KHAI BAO RANDOMIZE


Dim MyValue

Randomize

MyValue = Int((6 * Rnd) + 1)

Debug.Print MyValue

End Sub


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KHAI BAO REDIM


Dim MyArray() As Integer

ReDim MyArray(5)

For I = 1 To 5

MyArray(I) = I

Next I

ReDim MyArray(10)

For I = 1 To 10

MyArray(I) = I

Next I

ReDim Preserve MyArray(15)

End Sub

KHAI BAO REM


Dim MyStr1, MyStr2

MyStr1 = "Hello"

Rem Comment after a statement separated by a colon.

MyStr2 = "Goodbye"

End Sub

KHAI BAO RESET


Dim FileNumber

For FileNumber = 1 To 5

Open "TEST" & FileNumber For Output As #FileNumber

Write #FileNumber, "Hello World"

Next FileNumber

Reset

End Sub

KHAI BAO RMDIR


RmDir "C:\myFolder"

End Sub

KHAI BAO SAVEPICTURE


Dim CX, CY, Limit

Dim RadiusAs Integer, Msg As String

ScaleMode = vbPixels


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AutoRedraw = True

Width = Height

CX = ScaleWidth / 2

CY = ScaleHeight / 2

Limit = CX

For Radius = 0 To Limit

Circle (CX, CY), Radius, RGB(Rnd * 255,Rnd * 255, Rnd * 255)

DoEvents

Next Radius

Msg = "Choose OK to save the graphics "

Msg = Msg & "from this form to a bitmap file."

MsgBox Msg

SavePicture Me.Image, "C:\TEST1.jpg"

End Sub

KHAI BAO SAVESETTING


SaveSetting appname:="My.Opera.Com/ManMan89", section:="Startup", Key:="Top", setting:=75

SaveSetting "My.Opera.Com/ManMan89", "Startup", "Left", 50

DeleteSetting "My.Opera.Com/ManMan89", "Startup"

End Sub

KHAI BAO SEEK


Dim MyRecord As Record, MaxSize, RecordNumber

Open "TESTFILE" For Random As #1 Len = Len(MyRecord)

MaxSize = LOF(1) \ Len(MyRecord)

For RecordNumber = MaxSize To 1 Step -1

Seek #1, RecordNumber

Get #1, , MyRecord

Next RecordNumber

Close #1

End Sub

KHAI BAO SELECT CASE


Dim Number

Number = InputBox("Please enter number")

Select Case Number

Case 1 To 5

Debug.Print "Between 1 and 5"


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Case 6, 7, 8

Debug.Print "Between 6 and 8"

Case 9 To 10

Debug.Print "Greater than 8 & less than 10"

Case Is > 10

Debug.Print "More than 10"

Case Else

Debug.Print "Not more than 1"

End Select

End Sub

KHAI BAO SENDKEYS


Dim ReturnValue, I

ReturnValue = Shell("CALC.EXE", 1)

AppActivate ReturnValue

For I = 1 To 100

SendKeys I & "{+}", True

Next I

SendKeys "=", True

SendKeys "%{F4}", True

End Sub

KHAI BAO SET


Dim myCon, myRst

Set myCon = CreateObject("ADODB.Connection")

Set myRst = CreateObject("ADODB.Recordset")

myCon.Open strCon

Set myRst = Nothing

Set myCon = Nothing

End Sub

KHAI BAO SETATTR


SetAttr "c:TESTFILE.txt", vbHidden

SetAttr "TESTFILE", vbHidden + vbReadOnly

End Sub

KHAI BAO STATIC

Function KeepTotal(Number)

Static Accumulate


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Accumulate = Accumulate + Number

KeepTotal = Accumulate

End Function

Static Function MyFunction(Arg1, Arg2, Arg3)

Accumulate = Arg1 + Arg2 + Arg3

Half = Accumulate / 2

MyFunction = Half

End Function


Dim ldTotal As Double

ldTotal = KeepTotal(10)

ldTotal = ldTotal + MyFunction(1, 2, 3)

Debug.Print ldTotal

End Sub

KHAI BAO STOP



ldTotal = 10

Debug.Print ldTotal

Stop

ldTotal = ldTotal + 20

Debug.Print ldTotal

End Sub

KHAI BAO SUB

Public Accumulate As Integer

Sub KeepTotal(Number)

Accumulate = Accumulate + Number

Number = Number + 10

End Sub



Accumulate = 0

ldTotal = 10

KeepTotal (ldTotal)

ldTotal = Accumulate

Debug.Print Accumulate

ldTotal = Number

Debug.Print ldTotal


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End Sub

KHAI BAO TYPE

Type EmployeeRecord

ID As Integer

Name As String

Address As String

Phone As Long

HireDate As Date

End Type


Dim Employees(10) As EmployeeRecord

Dim i As Integer

For i = 0 To 9

Employees(i).ID = i

Employees(i).Name = "PHM Huu Khang " & i

Next

For i = 0 To 9

Debug.Print Employees(i).ID & " " & Employees(i).Name

Next

End Sub

KHAI BAO UNLOAD


Unload frmEmployee

Unload Me

End Sub

KHAI BAO WHILE..WEND


Dim Counter

Counter = 0

While Counter < 20

Counter = Counter + 1

Wend

Debug.Print Counter

End Sub

KHAI BAO WIDTH


Dim I



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Mo tap tin xet ghi

VBA.Width 1, 5

For I = 0 To 9

Print #1, Chr(48 + I);

Next I

Close #1

End Sub

KHAI BAO WITH..END WITH


Dim MyObject As Object

Set MyObject = Me

With MyObject

.Width = 100

.Caption = "Hello World"

End With

End Sub

KHAI BAO WRITE


Open "C:\teo.txt" For Output As #1

Write #1, "Hello World", 234

Write #1,

Dim MyBool, MyDate, MyNull, MyError

MyBool = False: MyDate = #2/12/1969#

MyNull = Null

MyError = CVErr(32767)

Write #1, MyBool; " is a Boolean value"

Write #1, MyDate; " is a date"

Write #1, MyNull; " is a null value"

Write #1, MyError; " is an error value"

Close #1

End Sub

Exam CHAPTER 3

PHEP TOAN &


Dim MyStr

MyStr = "Hello" & " World"

Debug.Print MyStr

MyStr = "Check " & 123 & " Check"


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Debug.Print MyStr

End Sub

PHEP TOAN *


Dim MyNum

MyNum = 10

Debug.Print MyStr

MyNum = MyNum*20

Debug.Print MyStr

End Sub

PHEP TOAN +


Dim MyNum

MyNum = 10

Debug.Print MyNum

MyNum = MyNum+20

Debug.Print MyNum

MyNum = "Pham" + " Huu Khang"

Debug.Print MyNum

End Sub

PHEP TOAN -


Dim MyNum

MyNum = 10

Debug.Print MyNum

MyNum = MyNum-20

Debug.Print MyNum

End Sub

PHEP TOAN /


Dim MyNum

MyNum = 100

Debug.Print MyNum

MyNum = MyNum/20

Debug.Print MyNum

MyNum = 0/MyNum

Debug.Print MyNum

End Sub


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PHEP TOAN


Dim MyNum

MyNum = 107

Debug.Print MyNum

MyNum = MyNum\20

Debug.Print MyNum

MyNum = 0\MyNum

Debug.Print MyNum

End Sub

PHEP TOAN ^


Dim MyNum

MyNum = 10

Debug.Print MyNum^2

MyNum = MyNum^0

Debug.Print MyNum

MyNum = 0^MyNum

Debug.Print MyNum

End Sub

PHEP TOAN AND


Dim A, B, C, D, MyCheck

A = 10: B = 8: C = 6: D = Null

MyCheck = A > B And B > C

Debug.Print MyCheck

MyCheck = B > A And B > C

Debug.Print MyCheck

MyCheck = A > B And B > D

Debug.Print MyCheck

MyCheck = A And B

Debug.Print MyCheck

End Sub

PHEP TOAN EQV



A = 10: B = 8: C = 6: D = Null

MyCheck = A > B Eqv B > C


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Debug.Print MyCheck

MyCheck = B > A Eqv B > C

Debug.Print MyCheck

MyCheck = A > B Eqv B > D

Debug.Print MyCheck

MyCheck = A Eqv B

Debug.Print MyCheck

End Sub

PHEP TOAN IMP



A = 10: B = 8: C = 6: D = Null

MyCheck = A > B Imp B > C

Debug.Print MyCheck

MyCheck = A > B Imp C > B

Debug.Print MyCheck

MyCheck = B > A Imp C > B

Debug.Print MyCheck

MyCheck = B > A Imp C > D

Debug.Print MyCheck

MyCheck = C > D Imp B > A

Debug.Print MyCheck

MyCheck = B Imp A

Debug.Print MyCheck

End Sub

PHEP TOAN IS


Dim MyObject, YourObject, ThisObject

Dim OtherObject, ThatObject, MyCheck

Set YourObject = MyObject

Set ThisObject = MyObject

Set ThatObject = OtherObject

MyCheck = YourObject Is ThisObject

Debug.Print MyCheck

MyCheck = ThatObject Is ThisObject

Debug.Print MyCheck

MyCheck = MyObject Is ThatObject

Debug.Print MyCheck


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End Sub

PHEP TOAN MOD


Dim MyNum

MyNum = 107

Debug.Print MyNum

MyNum = MyNum Mod 20

Debug.Print MyNum

MyNum = 0 Mod MyNum

Debug.Print MyNum

End Sub

PHEP TOAN NOT



A = 10: B = 8: C = 6: D = Null

MyCheck = Not (A > B)

MyCheck = Not (B > A)

MyCheck = Not (C > D)

MyCheck = Not A

End Sub

PHEP TOAN OR



A = 10: B = 8: C = 6: D = Null

MyCheck = A > B Or B > C

Debug.Print MyCheck

MyCheck = B > A Or B > C

Debug.Print MyCheck

MyCheck = A > B Or B > D

Debug.Print MyCheck

MyCheck = B > D Or B > A

Debug.Print MyCheck

MyCheck = A Or B

Debug.Print MyCheck

End Sub

PHEP TOAN XOR




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A = 10: B = 8: C = 6: D = Null

MyCheck = A > B Xor B > C

Debug.Print MyCheck

MyCheck = B > A xOr B > C

Debug.Print MyCheck

MyCheck = B > A xOr C > B

Debug.Print MyCheck

MyCheck = B > D XOr A > B

Debug.Print MyCheck

MyCheck = A XOr B

Debug.Print MyCheck

End Sub

Exam CHAPTER 4

THUOC TINH ACTIONPrivate Sub Command1_Click()

Me.CommonDialog1.Action = 1





End Sub


Me.CommonDialog1.ShowOpenMe.CommonDialog1.ShowSaveMe.CommonDialog1.ShowColor

Me.CommonDialog1.ShowFont

Me.CommonDialog1.ShowPrinter

End Sub

THUOC TINH ACTIVECONNECTION

Khai bo v khi to i tng

Dim rdoCn As New rdoConnection

Dim rdoCn2 As New rdoConnection

Dim rdoQy As New rdoQueryDim rdoRs As rdoResultset

Dim rdoCol As rdoColumn

Dim rdoEn As rdoEnvironment

Khai bo trong bin c Load ca Form1


On Error GoTo CnEh


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Gn i tng RDOEnviroment

Set rdoEn = rdoEnvironments(0)

With rdoCn

THUOC TINH Connect vi chui kt ni c s d liu

.Connect = "UID=sa;PWD=concat;Database=Northwind;" & "Server=.;Driver={SQL Server}" & "DSN='';"

.LoginTimeout = 5

.EstablishConnection rdDriverNoPrompt, True

rdoEn.rdoConnections.Add rdoCn

End With

With rdoCn2

.Connect = "UID=sa;PWD=concat;Database=Northwind;" & "Server=.;Driver={SQL Server}" & "DSN='';"

.LoginTimeout = 5

.EstablishConnection rdDriverNoPrompt, True

rdoEn.rdoConnections.Add rdoCn2

End With

Lit k tt c cc i tng c s d liu do ngi s dng to

ra trong c s d liu Northwind

With rdoQy

Set .ActiveConnection = rdoCn

.SQL = "Select Name, refDate " & " from Sysobjects where type = 'U' "

.LockType = rdConcurReadOnly

.RowsetSize = 1

.CursorType = rdUseServer

End With

For Each rdoCn In rdoEn.rdoConnections

Set rdoQy.ActiveConnection = rdoCn

Set rdoRs = rdoQy.OpenResultset(rdOpenForwardOnly)

With rdoRs

For Each rdoCol In rdoRs.rdoColumns

Debug.Print rdoCol.Name,

Next

Debug.Print

Do Until rdoRs.EOF

For Each rdoCol In rdoRs.rdoColumns

Debug.Print rdoCol

Next

rdoRs.MoveNext

Loop


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End With

Next

Exit Sub

CnEh:

Beep

MsgBox Error

End Sub

THUOC TINH ACTIVECONTROL

Private Sub Form_Click()

If TypeOf Screen.ActiveControl Is TextBox Then

Label1.Caption = Screen.ActiveControl.Text

Else

Label1.Caption = "Button: " + Screen.ActiveControl.Caption

End If

End Sub

THUOC TINH ACTIVEFORM

' M trong MDI form.

Private Sub MDIForm_Load()

Dim NewForm As New Form1

' To mt i tng mi ca Form

NewForm.Show

End Sub


' In time trn Form ang kch hot

ActiveForm.Print "The time is " & Format(Now, "Long Time")

End Sub

THUOC TINH ALIGN

' Thm PictureBox vo Form

' Thm CommandButton vo trong PictureBox


If Picture1.Align = vbAlignTop Then

Picture1.Align = vbAlignBottom

' Canh l cho PictureBox bn di form.

Else

Picture1.Align = vbAlignTop

' Canh l cho PictureBox trn u form.

End If

End Sub


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THUOC TINH ALIGNMENT

' Thm PictureBox vo Form

' Thm CommandButton vo trong PictureBox


If Picture1.Align = vbAlignTop Then

Picture1.Align = vbAlignBottom

' Canh l cho PictureBox bn di form.

Else

Picture1.Align = vbAlignTop

' Canh l cho PictureBox trn u form.

End If

End Sub

THUOC TINH ALLOWROWS

Dim strName As String

'Thm mt iu khin DataGrid vo Form

Private Sub DataGrid1_BeforeColEdit(ByVal ColIndex As Integer, ByVal KeyAscii As Integer, Cancel As Integer)

If strName = "Phil" Then

Cancel = False

' Nu tn l "Phil" th chng trnh cho php kch hot ni dung

ca DataGrid.

Else

Cancel = True

MsgBox "You've attempted to edit " & " column number " & ColIndex + 1 & " without the proper authorization."

' Khng cho php ngi khc kch hot ni dung trn DataGrid.

End If

End Sub


strName = InputBox("Please enter your name")

DataGrid1.AllowArrows = True

' Cho php ngi s dng di chuyn trn DataGrid

bng phm arrow keys.

DataGrid1.WrapCellPointer = True

End Sub

THUOC TINH ALLOWVERTICAL


' Gn captions nhn dng cho mi Band

cbrMain.Bands(1).Caption = "1"


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' Gn THUOC TINH AllowVertical ca Band 2

cbrMain.Bands(2).AllowVertical = False

End Sub


' Thay i hng ca iu khin CoolBar

If cbrMain.Orientation = cc3OrientationHorizontal Then

cbrMain.Orientation = cc3OrientationVertical

cbrMain.Align = vbAlignLeft

Else

cbrMain.Orientation = cc3OrientationHorizontal

cbrMain.Align = vbAlignTop

End If

End Sub

THUOC TINH ARCHIVE, HIDDEN, NORMAL, SYSTEM


File1.Archive = True

File1.Hidden = True

File1.Normal = True

File1.System = True

End Sub

THUOC TINH ARRANGE

Private Sub Option1_Click(Index As Integer)

' Gn THUOC TINH Arrange vo THUOC TINH Index ca iu

khin Option1.

ListView1.Arrange = Index

End Sub


' nh ngha nhn cho iu khin OptionButton

Option1(0).Caption = "No Arrange"

Option1(1).Caption = "Align Auto Left"

Option1(2).Caption = "Align Auto Top"

' Khai bo bin to i tng ListView v ImageList.

Dim i As Integer

Dim itmX As ListItem

Dim imgX As ListImage

' Khai bo bin i tng cho i tng ListImages.


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' Thm i tng ListImage vo iu khin ImageList.

Set imgX = ImageList1.ListImages. Add(, , LoadPicture("icons\mail01a.ico"))

ListView1.Icons = ImageList1

' Chn biu tng ng vi iu khin ImageList.

' Thm 10 i tng ListItem, mi i tng ng vi 1 Icon.

For i = 1 To 10

Set itmX = ListView1.ListItems.Add()

itmX.Icon = 1

itmX.Text = "ListItem " & i

Next i

End Sub

THUOC TINH ATTACHMENTCOUNT


MAPIMessages1.Compose

MAPIMessages1.RecipDisplayName = Text1.Text

MAPIMessages1.MsgSubject = Text2.Text

MAPIMessages1.MsgNoteText = Text4.Text

MAPIMessages1.AttachmentName =test.txt"

MAPIMessages1.AttachmentPathName = "C:\test.txt"

i = MAPIMessages1.AttachmentCount

MAPIMessages1.ResolveName

MAPIMessages1.Send

End Sub

THUOC TINH ATTACHMENTNAME










MAPIMessages1.Send

End Sub

THUOC TINH ATTACHMENTPATHNAME




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MAPIMessages1.Send

End Sub

THUOC TINH ATTRIBUTES


Dim fs, f, r

Set fs = CreateObject("Scripting.FileSystemObject")

Set f = fs.GetFile(fs.GetFileName(filespec))

If f.Attributes And 32 Then

r = MsgBox("The Archive bit is set, " & " do you want to clear it?", vbYesNo, "Set/Clear Archive Bit")

If r = vbYes Then

f.Attributes = f.Attributes - 32

MsgBox "Archive bit is cleared."

Else

MsgBox "Archive bit remains set."

End If

Else

r = MsgBox("The Archive bit is not set. " &"Do you want to set it?", vbYesNo, "Set/Clear Archive Bit")

If r = vbYes Then

f.Attributes = f.Attributes + 32

MsgBox "Archive bit is set."

Else

MsgBox "Archive bit remains clear."

End If

End If

End Sub

THUOC TINH AUTOINCREAMENT


With MSChart1

' Trnh by biu dng 3d vi 8 ct v 8 hng d liu.

.ChartType = VtChChartType3dBar

.ColumnCount = 8


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.AutoIncrement = False

.RowCount = 8

For Column = 1 To 8

For Row = 1 To 8

.Column = Column

.Row = Row

.Data = Row * 10

Next Row

Next Column

.ShowLegend = True

.SelectPart VtChPartTypePlot, index1, index2, index3, index4

.EditCopy

.SelectPart VtChPartTypeLegend, index1, index2, index3, index4

.EditPaste

End With

End Sub

THUOC TINH AUTOPLAY


With CommonDialog1

.Filter = "avi (*.avi)|*.avi"

.ShowOpen

End With

With Animation1

.Autoplay = True

.Open CommonDialog1.FileName

End With

End Sub

THUOC TINH AUTODRAW

Thm iu khin PictureBox trn form


Picture1.ScaleHeight = 100

' Gn t l 100.

Picture1.ScaleWidth = 100

Picture1.AutoRedraw = True

' Gn THUOC TINH AutoRedraw.

Picture1.ForeColor = 0

' Gn mu ch (ForeColor).

Picture1.FillColor = QBColor(9)


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' Gn THUOC TINH t mu (FillColor).

Picture1.FillStyle = 0

' Set FillStyle.

Picture1.Circle (50, 50), 30

' V hnh tr.

Picture1.AutoRedraw = False

' Turn off AutoRedraw.

End Sub

Private Sub Picture1_Click()

Dim I

' Khai bo bin

Picture1.ForeColor = RGB(Rnd * 255, 0, 0)

' Chn mu ngu nhin.

For I = 5 To 95 Step 10

' V ng thng

Picture1.Line (I, 0)-(I, 100)

Next

End Sub

THUOC TINH AUTOSHOWCHILDREN

Khai bo trong MDIForm

Private Sub MDIForm_Load()

MDIForm1.AutoShowChildren = False

' Che du Form dng Child mi khi n np ln.

Dim HideForm As New Form1

' Khai bo i tng Form.

HideForm.Caption = "HideForm"

' gn THUOC TINH Caption.

Load HideForm

' Np v che du

MDIForm1.AutoShowChildren = True

' Gn THUOC TINH AutoShowChildren l True Form con

xut hin mi khi chng np ln MDIForm.

Dim ShowForm As New Form1

' Khai bo i tng form.

ShowForm.Caption = "ShowForm"

' Gn THUOC TINH caption.

Load ShowForm

' Np v hin th


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End Sub

THUOC TINH AUTOSIZE (PANEL)

' Thm mt iu khin StatusBar v PictureBox vo Form


Dim pnlX As Panel

' Gn THUOC TINH tag cho mi iu khin v Form.

Form1.Tag = "Project 1 Form"

Command1.Tag = "A command button"

Picture1.Tag = "Picture Box Caption"

StatusBar1.Tag = "Application StatusBar1"

' Gn THUOC TINH AutoSize ca Panel u tin vi ni dung.

StatusBar1.Panels(1).AutoSize = sbrContents

' Thm 2 Panel v gn ni dung cho chng.

Set pnlX = StatusBar1.Panels.Add

pnlX.AutoSize = sbrContents

Set pnlX = StatusBar1.Panels.Add

pnlX.AutoSize = sbrContents

End Sub

Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, y As Single)

' Hin th gi tr THUOC TINH Tag ca iu khin trong Panel 1,

' v to x,y trn Panel 2 v 3. Bi v THUOC TINH AutoSize

' bng Contents cn Panel ht nht s ko di.

StatusBar1.Panels(1).Text = Form1.Tag

StatusBar1.Panels(2).Text = "X = " & X

StatusBar1.Panels(3).Text = "Y = " & y

End Sub

' Khai bo trong bin c MouseMove ca nt Command1

Private Sub Command1_MouseMove(Button As Integer, Shift As Integer, X As Single, y As Single)

StatusBar1.Panels(1).Text = Command1.Tag



End Sub

' Khai bo trong bin c MouseMove ca iu khin PictureBox

Private Sub Picture1_MouseMove(Button As Integer, Shift As Integer, X As Single, y As Single)

StatusBar1.Panels(1).Text = Picture1.Tag



End Sub


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' Khai bo trong bin c MouseMove ca iu khin StatusBar

Private Sub StatusBar1_MouseMove(Button As Integer, Shift As Integer, X As Single, y As Single)

StatusBar1.Panels(1).Text = StatusBar1.Tag



End Sub

THUOC TINH BACKCOLOR, BACKCOLORBKG, BACKCOLORFIXED, BACKCOLORSEL


Timer1.Interval = 500

End Sub

Private Sub Timer1_Timer()

MSHFlexGrid1.BackColorBkg = QBColor(Rnd * 15)

MSHFlexGrid1.BackColorFixed = QBColor(Rnd * 10)

MSHFlexGrid1.BackColorSel = QBColor(Rnd * 10)

End Sub

THUOC TINH BACKCOLOR, FORECOLOR



End Sub


BackColor = QBColor(Rnd * 15)

ForeColor = QBColor(Rnd * 10)

Picture1.BackColor = QBColor(Rnd * 15)

Picture1.ForeColor = QBColor(Rnd * 10)

End Sub

THUOC TINH BACKCOLOR, FORECOLOR

thc hin v d sau, bn thm iu khin Timer1 v RichTextBox1 vo Form1.



End Sub


BackColor = QBColor(Rnd * 15)

ForeColor = QBColor(Rnd * 10)

RichTextBox1.BackColor = QBColor(Rnd * 15)

End Sub


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THUOC TINH

BACKCOLORBAND, BACKCOLORHEADER, BACKCOLORINDENT, BACKCOLORUNPOPULATED



End Sub


MSHFlexGrid1.Cols = 3

MSHFlexGrid1.Rows = 5

MSHFlexGrid1.Col = 0

MSHFlexGrid1 = "ASAS"

MSHFlexGrid1.BackColorBand(0) = QBColor(Rnd * 2)

MSHFlexGrid1.BackColorHeader(0) = QBColor(Rnd * 15)

MSHFlexGrid1.BackColorIndent(0) = QBColor(Rnd * 10)

MSHFlexGrid1.BackColorUnpopulated = QBColor(Rnd * 10)

End Sub

THUOC TINH BANDBORDERS


' Khai bo Caption cho mi Band

cbrMain.Bands(1).Caption = "One"

cbrMain.Bands(2).Caption = "Two"

cbrMain.Bands(3).Caption = "Three"

End Sub


If cbrMain.BandBorders = True Then

' Che du ng vin

cbrMain.BandBorders = False

Else

' Trnh by ng vin

cbrMain.BandBorders = True

End If

End Sub

THUOC TINH BOF V EOF


' Khai bo v khi to i tng ADO

Dim myCon As New ADODB.Connection

Dim myRs As New ADODB.Recordset

Dim strCon As String

' Khai bo chui kt ni c s d liu SQL Server


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strCon = "Provider=SQLOLEDB.1;"

strCon=strCon & "Persist Security Info=False;"

strCon = strCon & "UID=sa;PWD=concat;"

strCon = strCon & "Initial Catalog=Northwind;"

strCon = strCon & "Server.;"

' M kt ni c s d liu

myCon.Open strCon

myRs.CursorLocation = adUseClient

' M tp d liu

myRs.Open "Select * from Customers", myCon, adOpenDynamic, adLockReadOnly

If myRs.RecordCount > 0 Then

' Kim tra THUOC TINH EOF

Do Until myRs.EOF

Debug.Print myRs("CompanyName")

myRs.MoveNext

Loop

End If

Set myRs = Nothing

Set myCon = Nothing

End Sub

THUOC TINH BOLD


Font.Bold = Not Font.Bold

Font.Strikethrough = Not Font.Strikethrough

Font.Italic = Not Font.Italic

Font.Underline = Not Font.Underline

Font.Size = 16

If Font.Bold Then

Print "Font weight is " & Font.Weight & " (bold)."

Else

Print "Font weight is " & Font.Weight & " (not bold)."

End If

End Sub

THUOC TINH BOLD

Private Sub cmdMake_Click()

tvwDB.Sorted = True

Set mNode = tvwDB.Nodes.Add()

mNode.Text = "Publisher"


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Set mNode = tvwDB.Nodes.Add()

mNode.Text = "Private"

Set mNode = tvwDB.Nodes.Add(1, tvwChild)

mNode.Text = "DEF"


mNode.Text = "GHI"


mNode.Text = "ABC-1"

mNode.Bold = True


mNode.Text = "ABC-2"


mNode.Text = "DEF-1"


mNode.Text = "DEF-2"


mNode.Text = "ABCD"

End Sub

THUOC TINH BOOKMARK

Private Sub DataGrid1_UnboundDeleteRow(Bookmark As Variant)

For i% = Bookmark + 1 To RowCount - 1

For j% = 0 To MAXCOLS - 1

UserData(j%, i% - 1) = UserData(j%, i%)

Next j%

Next i%

End Sub

THUOC TINH BORDERCOLOR


Shape1.BorderColor = &H80000001

End Sub

THUOC TINH BORDERWIDTH


Combo1(0).Width = 1440 * 1.5

Load Combo1(1)

Combo1(1).Top = Combo1(0).Top + Combo1(0).Height * 1.5

Combo1(1).Visible = True

For i = 0 To 6

Combo1(0).AddItem "BorderStyle = " & i


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Next i

For i = 1 To 10

Combo1(1).AddItem "BorderWidth = " & i

Next i

Combo1(0).ListIndex = 1

Combo1(1).ListIndex = 0

End Sub

Private Sub Combo1_Click(Index As Integer)

If Index = 0 Then

Shape1.BorderStyle = Combo1(0).ListIndex

Else

Shape1.BorderWidth = Combo1(1).ListIndex + 1

End If

End Sub

THUOC TINH BOTTOMMARGIN, TOPMARGIN

Private Sub ChangeMargins(Optional fraction As Long)

If fraction = 0 Then fraction = 8

With DataReport1

.TopMargin = 1000

.BottomMargin = 1000

.LeftMargin = .Width / fraction

.RightMargin = .Width / fraction

End With

End Sub

THUOC TINH BOUNDTEXT

Private Sub DataCombo1_MouseUp(Button As Integer, Shift As Integer, x As Single, y As Single)

Dim recSource As String

recSource = "SELECT * FROM Products " & " WHERE SupplierID = " & DataCombo1.BoundText

Adodc1.RecordSource = recSource

Adodc1.Refresh

End Sub


' S dng chung chui kt ni c s d liu cho hai iu khin

' ADO Data. Nu li pht sinh th kim tra ng dn ca tp

' tin Nwind.mdb.

Dim ConnectionString As String

ConnectionString = "Driver={Microsoft " &" Access Driver (*.mdb)};Dbq=C:\Program " &" Files\Microsoft Visual

Studio\VB98\ " &" Nwind.mdb;Uid=;Pwd="


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' Lu rng,c hai iu khin ADO Data,

' Recordsource phi s dng chungSupplierID.

' y l trng d liu thng thng c s dng

' bng cch thay i trong iu khin DataCombo

' khi recordset tr v bi ADODC1. ADODC2.

With Adodc1

.RecordSource = "SELECT ProductName, " & "ProductID, SupplierID FROM Products"

.ConnectionString = ConnectionString

.Refresh

.Caption = "Products"

.Visible = False

End With

With Adodc2

.RecordSource = "SELECT CompanyName," & "SupplierID FROM Suppliers"

.ConnectionString = ConnectionString

.Refresh

.Caption = "Suppliers"

.Visible = False

End With

Set DataGrid1.DataSource = Adodc1

With DataCombo1

Set .DataSource = Adodc1

.DataField = "SupplierID"

' Ct d liu thay i.

.BoundColumn = "SupplierID"

' Ct d liu trong ADODC2 thay i DataField.

Set .RowSource = Adodc2

.ListField = "CompanyName"

' Ct d liu trnh by bng DataCombo.

End With

' ng b gia iu khin DataGrid v DataCombo bng

' cch di chuyn n mu tin u tin ca ADODC1.

Adodc1.Recordset.MoveFirst

End Sub

THUOC TINH BUTTONHEIGHT, BUTTONWIDTH


' To bin i tng cho ImageList.

Dim imgX As ListImage


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' Np pictures vo iu khin ImageList

Set imgX = ImageList1.ListImages. Add(, "open", LoadPicture("Graphics\open.bmp"))

Set imgX = ImageList1.ListImages. Add(, "save", LoadPicture("Graphics\save.bmp"))

Toolbar1.ImageList = ImageList1

' Create object variable for the Toolbar.

Dim btnX As Button

' Thm i tng button vo Buttons collection bng cch

' s dng phng thc Add. Sau khi thm mi button, bn

' gn hai THUOC TINH Description v ToolTipText.

Toolbar1.Buttons.Add , , , tbrSeparator

Set btnX = Toolbar1.Buttons.Add(, "open", , tbrDefault, "open")

btnX.ToolTipText = "Open File"

btnX.Description = btnX.ToolTipText

Set btnX = Toolbar1.Buttons.Add(, "save", , tbrDefault, "save")

btnX.ToolTipText = "Save File"

btnX.Description = btnX.ToolTipText

Set btnX = Toolbar1.Buttons.Add(, , , tbrSeparator)

' Nt k tip c kiu Placeholder style.

' iu khin ComboBox nm trn u cant ny.

Set btnX = Toolbar1.Buttons.Add(, "combo1", , tbrPlaceholder)

btnX.Width = 1500

Show

' Hin th formtip tc cu hnh iu khin ComboBox.

' Cu hnh iu khin ComboBox cng v tr vi

' i tng Button vi kiu PlaceHolder (key = "combo1").

With Combo1

.Width = Toolbar1.Buttons("combo1").Width

.Top = Toolbar1.Buttons("combo1").Top

.Left = Toolbar1.Buttons("combo1").Left

.AddItem "Black"

' Thm mu vo cho text.

.AddItem "Blue"

.AddItem "Red"

.ListIndex = 0

End With

End Sub

Private Sub Form_Resize()

' Configure ComboBox control.


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With Combo1

.Width = Toolbar1.Buttons("combo1").Width

.Top = Toolbar1.Buttons("combo1").Top

.Left = Toolbar1.Buttons("combo1").Left

End With

End Sub

Private Sub toolbar1_ButtonClick(ByVal Button As Button)

' s dng THUOC TINH Key vi pht biu SelectCase ch nh

hnh ng ca nt c chn

Select Case Button.Key

Case Is = "open"

' M tp tin.

MsgBox "Add code to open file here!"

Case Is = "save"

' Lu tp tin

MsgBox "Add code to save f ile here!"

End Select

End Sub

Private Sub Combo1_Click()

' Thay i mu nn ca form bng cch chn trong ComboBox.

Select Case Combo1.ListIndex

Case 0

Form1.BackColor = vbBlack

Case 1

Form1.BackColor = vbBlue

Case 2

Form1.BackColor = vbRed

End Select

End Sub

THUOC TINH CANGROW

If MsgBox("Do you want to show abbreviated titles?",vbYesNo + vbDefaultButton2) = vbYes Then

ptNwind.Sections("Products_Detail").Controls("txtProductName").CanGrow = False

Else

rptNwind.Sections("Products_Detail").Controls("txtProductName").CanGrow = True

End If

THUOC TINH CAPTION


' Kim tra Caption, sau thay i gi tr cho THUOC TINH ny


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If Command1.Caption = "Clicked" Then

Command1.Caption = "OK"

Else

Command1.Caption = "Clicked"

End If

End Sub

THUOC TINH CELLALIGNMENT

Thm mt iu khin MSHFlexGrid vo Form

Sub Form1_Load()

MSHFlexGrid1.CellAlignment = flexAlignLeftCenter

End Sub

THUOC TINH CELLBACKCOLOR, CELLFORECOLOR



MSHFlexGrid1.Text = "Focus Here"

End Sub


MSHFlexGrid1.CellBackColor = QBColor(Rnd * 15)

MSHFlexGrid1.CellForeColor = QBColor(Rnd * 10)

End Sub

THUOC TINH CELLFONTBOLD




End Sub


MSHFlexGrid1.CellFontBold = 1



End Sub

THUOC TINH CELLFONTITALIC




End Sub


MSHFlexGrid1.CellFontItalic = 1



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End Sub

THUOC TINH CELLFONTNAME




End Sub


MSHFlexGrid1.CellFontBold = 1

MSHFlexGrid1.CellFontName = Screen.Fonts(3)

MSHFlexGrid1.Text = Screen.Fonts(3)

' Hin th Font Name



End Sub

THUOC TINH CELLFONTSIZE




End Sub


MSHFlexGrid1.CellFontItalic = 1

MSHFlexGrid1.CellFontName = Screen.Fonts(3)

MSHFlexGrid1.Text = Screen.Fonts(3)

MSHFlexGrid1.CellFontSize = 12

MSHFlexGrid

VISUAL BASIC 6 - HÀM VÀ VÍ DỤ

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Transcript of VISUAL BASIC 6 - HÀM VÀ VÍ DỤ