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1. Class (static) constructor is called before the class is accessed for first time.2. Static (class) constructors cannot raise exceptions.3. New UI elements can be created and cannot be deleted in enhancement implementation4. You may only change or delete enhancements in exactly that enhancement implementation in

which it was created.

5. For each existing context, additional nodes and attributes can be created within anenhancement.

6. you wish to add an attribute to an existing node, there are two different situations:a. Within a node without a dictionary structure, this is possible without restriction.b. Within a node with a dictionary structure, one or more attributes from the used

structure can be added by choosing the context menu option Create Through Wizard

Attributes from Components of a Structure.

7. Additional attributes can be created as part of an enhancement implementation.8. The post-exit method automatically reads the importing parameter of the original method. All

the other parameters of the original method (exporting, changing, and returning parameters)

are provided as changing parameters.

9. The pre-exit method automatically provides all the importing and changing parameters of thecorresponding original method.

10. Navigation Linksa. You can create new navigation links.b. Existing navigation links, similar to UI elements in a view, can be suppressed.

They are not deleted then by any means, but remain as part of the original

component.c. A new navigation target can be defined for an existing navigation link.

11.To support the dynamic programming, the Web Dynpro framework offers a number of methodsin the service class CL_WD_DYNAMIC_TOOL.

12.Adding CONTEXT NODESa. For this purpose, the interfaceIF_WD_CONTEXT_NODE_INFOcontains the method

ADD_NEW_CHILD_NODE

b. The service classCL_WD_DYNAMIC_TOOLcontains the methodCREATE_NODEINFO_FROM_STRUCT with limited functionality.

13.Adding CONTEXT ATTRIBUTESa. The interfaceIF_WD_CONTEXT_NODE_INFOcontains the method ADD_ATTRIBUTE.

14.Fixed values in an attribute IF_WD_CONTEXT_NODE_INFO->SET_ATTRIBUTE_VALUE_SET.15.Breadcrumb Steps are bound to individual context attributes.16. Interface view is directly linked to a window.17.Assignment LayoutData

Layout UI Element LayoutData UI Element Description

FlowLayout FlowData FlowData provides the

layout data for a UI elementwhose container has a

FlowLayout.

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GridLayout GridData GridData provides the

layout data for a UI element

whose container has a

GridLayout.

MartrixLayout MatrixData MatrixData provides the

layout data for a UI elementwhose container has amatrix layout.

RowLayout RowData RowData provides the

layout data for a UI elementwhose container has a row

layout.

18.Prerequisite to implement post-exit or pre-exit methods.a. The prerequisite for this is that the original method was called using the local controller

interface (WD_THIS->) and not directly using the local controller instance (ME->).19.WDR_SELECT_OPTIONS, SALV_WD_TABLE.20.The controller attribute WD_THIS is a reference to this local interface. Depending on the

controller, a reference variable is of the following type:

a. IF_COMPONENTCONTROLLERb. IF_c. IF_d. IF_

21.Default attributes available in all controllers: WD_THIS and WD_CONTEXT.22.Which method gives reference to current controllerWD_GET_API.23.The UI tree can be changed dynamically

a. After WDDOINIT.b. Before WDDOINIT.c. After WDDOMODIFY.d. Before WDDOMODIFY.

24.Method available in component controllera. WDDOBEFORENAVIGATIONb. WDDOPREPROCESSINGc. WDDOBEFORENAVIGATIONd. WDDOONACTION

25.The interface view is connected to the web Dynpro application using which type of plug:a. Standardb. Suspendc. Startupd. Exit

********************************** ALL THE BEST***************************************

Harshith Reddy

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