Reset the Selected Value in the ComboBox

You can make your request in Combobox's OnAfterChange event with the following codes

If a database object is connected to the eBA Combobox

Value = string. Empty;

List1.Text = string. Empty;

If the database object is not connected to the eBA Combobox
 
List1.SelectedItem.Value = string. Empty;

List1.SelectedItem.Text = string. Empty;