protected override void OnClick()
{
if (_isOpen)
{
return;
}
_isOpen = true;
_dlg = new WindowStyling();
_dlg.Closing += bld_Closing;
_dlg.Owner = FrameworkApplication.Current.MainWindow;
_dlg.Show();
}
void bld_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
_dlg = null;
_isOpen = false;
}