DesktopComboBox.AllowAutoComplete

From Xojo Documentation

Property (As Boolean )
aDesktopComboBox.AllowAutoComplete = newBooleanValue
or
BooleanValue = aDesktopComboBox.AllowAutoComplete

New in 2021r3

Supported for all project types and targets.

If True, enables the autocomplete feature to complete text entries. The default is False.

Sample Code

Me.AllowAutoComplete = True