Inheritance: System.Windows.Controls.UserControl, INotifyPropertyChanged
        protected override void OnActivated(EventArgs e)
        {
            base.OnActivated(e);
            QuickFileToolWindowControl oQuickFileControl = ((QuickFileToolWindowControl)this.Content);

            oQuickFileControl.textBox.Focus();
        }
        public void OpenDialog()
        {
            WindowStartupLocation = System.Windows.WindowStartupLocation.CenterScreen;
            QuickFileToolWindowControl oQuickFileControl = ((QuickFileToolWindowControl)this.Content);

            oQuickFileControl.RefreshContent();
            oQuickFileControl.textBox.SelectAll();
            oQuickFileControl.textBox.Focus();
            ShowModal();
        }