on 08-26-2008 6:42 AM
Hi,
What is the use of Invalidate method of the context nodes...
thanks,
Arjun.G
Hi
The invalidate method id is used to refresh the node,that is to clear the contents(data binded) of the node
Regards
Tamil
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Calling invalidate on a context node causes its supply function (if defined) to be called.
Walter
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Hi Arjun,
If you know the reason why clear and refresh are used in normal abap (for internal table and variables) and in which scenarios you require to use them .Then you can easily relate those cases with webdynpro abap.
Now take an example that you have a acreen where you are entering some data to input fields .In some case you want that after navigation is performed from this page or to this page what ever the data user entered previously should get erased.(as almost the similar concept for clear and refresh).So in this case use can use invalidate method for the correspondin node whose attributes are bound with the input fields.
Hope this will help you understand the concept.
If any query feel free to ask
regards
PG
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