Question

Just like many things in WPF, sometimes the easiest things are the ones that are hardest to find examples for! How do you clear out the current text of an AutoCompleteBox? In my OnFocus event I want to make sure that the user is given a clear box for entry. So my event procedure looks like

private void autGlobal_GotFocus(object sender, RoutedEventArgs e)
{
    AutoCompleteBox acb = (AutoCompleteBox)sender;
    if (acb.SearchText == "Search Term")
    {
        //clear out the box if it has the focus                    
        this.autGlobal.Text = "";
    }         
}

However, setting the text property directly does not seem to work. Am I missing something obvious?

Answer 1

I think I found the answer after spending a ton of time on this and the XAML. This code example will not work when the IsTextCompletionEnabled option is set to true in the XAML. I set it to false and this code works fine.