protected override IScreenHost CreatePopup(Control view, PopupAttribute attribute)
        {
            var host = new XForm();

            view.Dock   = DockStyle.Fill;
            view.Anchor = AnchorStyles.Top | AnchorStyles.Left;
            host.Controls.Add(view);

            if (attribute != null)
            {
                SetupPopup(host, attribute);
            }

            host.Show(_mainForm);
            return(host);
        }