No idea of how to do it using exclusively Blend (Any hint appreciated) you
can however have it done using RoutedEvent
Adding: TextBox.GotFocus="OnGotFocus" on <Window> Tag and adding
private void OnGotFocus (object sender, RoutedEventArgs e)
(e.OriginalSource as TextBox).SelectAll();
on Codebehind will do the trick.
Corrado Cavalli [Microsoft .NET MVP-MCP]
UGIdotNET - http://www.yqcomputer.com/