How to de-activate a button in webdynpro dynamically

Hi Experts,
How to de-activate a button and checkbox in webdynpro dynamically depending upon some condition.
Thanks,

hi
to de-activate or disable a button, lets say u want to disable SAVE button once it is clicked...
then in the method where u write code for SAVE button
at the end:
elem_btn_disable->set_attribute(
        EXPORTING
          name = `DIS_SAVE`
          value = abap_false ).
DIS_SAVE should be of type WDY_BOOLEAN in the context.
abap_false means deactivating the button .
if you want to HIDE a button, then type should be WDY_VISIBILITY or WDY_UI_ELEMENT_VISIBLE
& value = 1 .
if you want to do this before screen loads, then do it in the INBOUND plug method of in tht WDDOINIT method.
give points if helpful.
rgds
prateek

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