When a user selects this item from a dropdown list, the lookup's edit value should become empty as if a user has pressed the Ctrl+Del combination.
The Lookup edit field is displaying data from the bound table (picture1), and we want user to select a value or select nothing (clear the selected value).
I know we can set LookUpEdit AllowNullInput to True, and user can use Ctrol+Del to clear value. But manager doesn’t like this approach.
We would like to add an extra row there, which can be either a blank row (see picture2 in attachment) or a row shows some text like “[blank]”, etc. Therefore, if a user wants to select nothing, he could just select this extra row.
How can I add this extra row to LookUpEdit?
Ticket
AS13948
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This feature can be implemented by creating a new data list, which always returns an empty row as the first item. We have created a sample project for you. Hopefully, it will come in handy.
Thank you,
Nick