private void ChooseDialogView_OnBackKeyPress(object sender, CancelEventArgs e)
{
if (_searchView != null && SearchContentControl.Visibility == Visibility.Visible)
{
_searchView.BeginCloseStoryboard(() =>
{
Main.Focus();
SearchContentControl.Visibility = Visibility.Collapsed;
});
e.Cancel = true;
return;
}
}