- Set AutoCompleteSource to "CustomSource" (in Properties of the textBox)
- AutoCompleteMode to "SuggestAppend" (in Properties of the textBox)
If I try to manually add a value to the AutoCompleteCustomSource-Collection, it works. But now I tried this:
And nothing happens. Did I forget something?
What I actually want is to add a value to the Collection every time a button is clicked.
Thanks in advance!