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Transcript of Restrict_Increase the Size of File Upload in ASP.net - ASP.net,C#.NET,VB
7/16/13 Restrict/Increase the size of file upload in asp.net - ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview,SQL Server,Ajax,SSRS, XML examples
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Restrict/Increase the size of file upload in asp.netBy: Suresh Dasari Dec 14, 2010
Categories: Asp.net , Fileupload
Introduction:
Here I will explain how to increase or restrict the size of file upload in asp.net
Description:
I have one page that contains one file upload control to accept files from user and saving it in one folder.
I have written code to upload file and saving it to folder it’s working fine after completion of my
application my friend has tested my application like he uploaded large size file nearly 10 MB file at that
time it’s shown the error page like “the page cannot displayed”.
Again I have search in net I found that file upload control allows maximum file size is 4MB for that reason
if we upload file size larger than 4MB we will get error page like “the page cannot displayed” or
“Maximum request length exceeded”.
After that I tried to increase the size of uploaded file by setting some properties in web.config
file like this
<system.web>
<httpRuntime executionTimeout="9999" maxRequestLength="2097151"/>
</system.web>
Here httpRuntime means
Configures ASP.NET HTTP runtime settings. This section can be declared at the machine, site, application,
and subdirectory levels.
executionTimeout means
Indicates the maximum number of seconds that a request is allowed to execute before being automatically
shut down by ASP.NET.
maxRequestLength means
Indicates the maximum file upload size supported by ASP.NET. This limit can be used to prevent denial of
service attacks caused by users posting large files to the server. The size specified is in kilobytes. The
default is 4096 KB (4 MB).
After that write the following code in aspx page
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:FileUpload ID="FileUpload1" runat="server" />
<br />
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
<br />
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
After that write the following code in code behind
protected void Button1_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
7/16/13 Restrict/Increase the size of file upload in asp.net - ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview,SQL Server,Ajax,SSRS, XML examples
www.aspdotnet-suresh.com/2010/12/how-to-restrict-size-of-upload-file-in.html 2/4
{
if (FileUpload1.PostedFile.ContentLength < 20728650)
{
try
{
Label1.Text = "File name: " +
FileUpload1.PostedFile.FileName + "<br>" +
FileUpload1.PostedFile.ContentLength + " kb<br>" +
"Content type: " +
FileUpload1.PostedFile.ContentType;
}
catch (Exception ex)
{
Label1.Text = "ERROR: " + ex.Message.ToString();
}
}
else
{
Label1.Text = "File size exceeds maximum limit 20 MB.";
}
}
}
After that write the following code in web.config
<system.web>
<httpRuntime executionTimeout="9999" maxRequestLength="2097151"/>
</system.web>
Demo
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duggu said...
can u pls tell me about sharing sql database over LAN...
March 24, 2012 at 2:17 PM
Anonymous said...
how we can upload large file like 100-200 mb.
tnx
jasraj
June 24, 2012 at 5:06 AM
Anonymous said...
how can i upload an image with some text data
July 24, 2012 at 11:47 PM
Anonymous said...
test
September 11, 2012 at 11:02 PM
rupesh said...
Hi Suresh,
I had used ajax fileupload control to upload excel file in which i don't know the path but i want to read data in the file
and i don't now the sheet name and file name
Please reply for the post
December 5, 2012 at 4:25 AM
7/16/13 Restrict/Increase the size of file upload in asp.net - ASP.NET,C#.NET,VB.NET,JQuery,JavaScript,Gridview,SQL Server,Ajax,SSRS, XML examples
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