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Monday, 20 January 2014

ABAP Web Dynpro Interview Questions Answers Realtime






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ABAP Web dynpro, Web Dynpro ABAP Interview Questions, SAP Webdynpro ABAP Real Time Interview Questions and Answers. 

Web dynpro ABAP, SAP Web Dynpro for ABAP, SAP WDA is the standard SAP technology to develop the web based applications using the SAP's standard programming language called ABAP/4. Here in this post we are going to provide real time interview questions and answers on SAP Webdynpro ABAP. These real time interview questions are helpful for the ABAPer's who are going to attend interviews on Web Dynpro ABAP. Refer this post for more details and real time interview questions on SAP Webdynpro ABAP. Click on read more to read this article.



ABAP Webdynpro Interview Questions and Answers


SAP Webdynpro ABAP Real Time Interview Questions and Answers-2, SAP Webdynpro ABAP, SAP Web Dynpro for ABAP, SAP WDA is the standard SAP technology to develop the web based applications using the SAP's standard programming language called ABAP/4. 


Here in this post we are going to provide real time interview questions and answers on SAP Webdynpro ABAP. These real time interview questions are helpful for the ABAPer's who are going to attend interviews on Web Dynpro ABAP. Refer this post for more details and real time interview questions on SAP Webdynpro ABAP.



Webdynpro ABAP Real Time Interview Questions Answers







21)What is the usage of Exit Plug in a Webdynpro?


 Window Exit plugs are outbound plugs used to close the webdynpro application. 


They can be called from the view, which are embedded in the window Note: Exit plugs won't work in portal environment.


Exit plugs can also be used to pass the call to another URL. Here is the sample code snippet of the exit plug call: 

method onexit .

data url type string.data close_window type wdy_boolean.url = 'url_name'.

close_window = abap_false. 

wd_this->fire_to_exit_plg( url = urlclose_window = close_window ).

endmethod.




22) Why FQDN? What is the necessary of FQDN?


FQDN (Frequently Qualified Domain Name) is necessary for running webdynpro ApplicationsRefer to sap help:






23)What is the standard ALV Component required creating ALV Reports in Webydnpro?


SALV_WD_TABLE




24) How do you build Select Options in Webdynpro?


Using the standard webdynpro component WDR_SELECT_OPTIONS 


You can refer to the example


WDR_TEST_SELECT_OPTIONS




25) How do you build F4 Search Help in Webdynpro?


 A F4 help for an input field can be made available by attaching the search help to the table field.


 Usage of standard help component WDR_OVR.Creating a component for help and attaching it to the node element as freely programmed value help




26) Explain how are Plugs (Inbound/Outbound) bounded in the Window?


 Plugs are created in the view and bounded in the window by using the drag drop option in the window view.




27) How do you Control the visibility of the Webdynpro UI elements programmatically?


Create a context element of type wdui_visibility and bind to the visibility property of the UI element.




28) What is the use of Interface views/nodes in Webdynpro?


 Interfaces nodes and views are created to use them in other webdynpro components.




29) How do you navigate between different Webdynpro applications?


 create a navigation class and trigger the target application to be called.




30) What are the webdynpro init events and what is the sequence of trigger Sequence?


WDDOINIT of the component controller, 


WDDOINIT of the Window Controller, 


WDDOINIT of the View Controller.




31) How the Error messages created and handled in webdynpro?


 Create a message UI element in the view and trigger the message required (Error, warning, status) using the code generation wizard.




32) What is an OTR and mention its usage in Webdynpro?


 Online Text Repository is the central storage for texts for webdynpro applications.


An OTR can be fetched in the program using the below mentioned code.


data: lv_string type string.lv_string = cl_wd_utilities=>get_otr_text_by_alias( alias = 'PACKAGE/OTR_NAME' ).




33) Can text elements be used in webdynpro? If yes how? 


Yes text elements can be used in webdynpro.Refer to the below code snippet.


data: lv_string type string.lv_string = wd_assist-> if_wd_component_assistance~get_text( '025' ).




34) What is the use of Road Map UI element?


 Roadmap UI element is used to display step-by-step work flows.


It can used to clearly define a process.




35) What are exit plugs? How are they created?


Exit plugs are used to exit from the webdynpro page or a webdynpro window.Exit plugs are created in the window.




36) Is it possible to hide F4 function for an Input element programmatically? 


Yes it is possible to hide F4 function attached to an input field.


Use the interfaceif_wd_context_node_info and the method 


set_attribute_value_help




37) Explain, how do Webydnpro Upload and download functions work?


File upload UI element is used upload files from desktop the application.


There is also restriction on the max data volumes that can be uploaded.


File download UI element is used to download files to the client.




38) Explain the concept of Road Map UI element in Webdynpro?


 Refer to the link:






39) How to create popup in webdynpro?


Create a view and embed the view in the window and call the window to trigger the popup.



40) Explain the concept of OVS and its usage?


WDR_OVS is the standard webdynpro component to generate F4 helps for the input field.



OVS refers to Object value selector.




For More Real Time SAP ABAP Interview Questions





Dear ABAPer's if you know any SAP Webdynpro ABAP interview questions please leave a comment in below comment box, it'll helpful for the fellow readers.


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