How to remove all the elements from a Dropdownbyindex

[Former Member]

Hi all,

I have a dropdown which is populated using a BAPI. based on some condition i need to refresh the dropdown and fill with new items. How can i remove all the items from a dropdown?

Thanks in advance

regards,

Sujesh

[Former Member · Accepted solution]

sujesh,

find node DropDown is bound to (via texts property). Then invoke node.invalidate().

VS

[Former Member]

sujesh,

If my previous suggestion doesn't work (and this is the case with Adaptive RFC model and nodes with supplyingRelationRole set) then just do not remove elements explicitly -- just re-execute your BAPI.

VS

[Former Member]

Hi,

Thanks for the reply,

In this case, the dropdown is not directly populated by a BAPI. We store the results in a valueNode and then populate it in to the dropdown based on various filtering criteria. So when the user changes the condition the dropdown values populated previously should go off and should get populated again with nw values(number of items also will differ based on the condition)

Ideally i would need a solution through which i should be able to delete all the items from the dropdown

Any help?

Thanks

Sujesh

[Former Member]

Sujesh,

why dont you use a value node and a value attribute for the dropdown ? As soon as the user makes any changes, you invalidate this node and fill it with required elements ?

I hope this works for you.

Regards

Kapil

[Former Member]

Hi,

If your context structure looks like this:

-Root

--SomeValueNode

---Text (value attribute, bound to "texts" property of dropdown)

Then you wil need to invalidate this node for deleting all previous values of the dropdown. So your code should look like:

wdContext.nodeSomeValueNode().invalidate();

Regards,

Satyajit.