Hello all,
This is something I tried to face many times, but never find the answer. This is why I have decided to post it here, as I did not find anything else on the internet.
I would like to add a dropdown filter to the alv shown in the picture below.
I´ve seen that actually it is possible to do that, by making use of structure FILTER_VALUES of component SALV_WD_TABLE. This would be pretty straight forward if my webdynpro, HAP_START_PAGE_POWL_UI, made a direct use of this component, as I could easily access to the context of this component. The problem is the following:
This WDC HAP_START_PAGE_POWL_UI, makes use of POWL_UI_COMP, that makes use of POWL_TABLE_COMP, that finally makes use of SALV_WD_TABLE. Now, the structure FILTER_VALUES of component SALV_WD_TABLE is set as an interface node, so I tried enhancing POWL_TABLE_COMP in order to make use of this structure, which is possible, but unfortunately you cannot set it as an interface node in this component, so I would not be able to do the same in POWL_UI_COMP. I dont now if you follow me, I dont even know if it makes sense, but I was trying to cascade upwards the structure I need to populate 
Now, I think the only option left (but I run out of ideas) is to somehow accessing component SALV_WD_TABLE from HAP_START_PAGE_POWL_UI, passing through all the components.
Summarizing, I would need to access the component of the component of the component fo my component :D. Do you have any idea?
Thanks all in advance!
Kr,
Vicente