using System;using DevExpress.ExpressApp;using DevExpress.ExpressApp.Win.Editors;using DevExpress.Utils.Menu;using DevExpress.XtraGrid.Menu;using DevExpress.XtraGrid.Views.Grid;namespace CommonModule.Common.Controlers{           public  class ListViewFooterMenuViewController : ViewController        {            public ListViewFooterMenuViewController()            {                TargetViewType = ViewType.ListView;            }            GridListEditor _listEditor;            protected override void OnViewControlsCreated()            {                base.OnViewControlsCreated();                _listEditor = ((ListView)View).Editor as GridListEditor;                if (_listEditor == null) return;                _listEditor.GridView.PopupMenuShowing += GridView_PopupMenuShowing;                                _listEditor.GridView.OptionsView.ColumnAutoWidth = false;//啟用滾動條            }            void GridView_PopupMenuShowing(object sender, PopupMenuShowingEventArgs e)            {                if (e.MenuType != GridMenuType.Column) return;                var menu = e.Menu as GridViewColumnMenu;                if (menu == null) return;                string menuCaption;                if (_listEditor.GridView.OptionsView.ShowFooter)                    menuCaption = "Hide Footer";                else                    menuCaption = "Show Footer";                var item = new DXMenuCheckItem(menuCaption,_listEditor.GridView.OptionsView.ShowFooter, null, OnDrempelItemClick);                menu.Items.Add(item);            }            private void OnDrempelItemClick(object sender, EventArgs e)            {                _listEditor.GridView.OptionsView.ShowFooter = !_listEditor.GridView.OptionsView.ShowFooter;            }            protected override void OnDeactivated()            {                              base.OnDeactivated();                if (_listEditor == null || _listEditor.GridView == null) return;                _listEditor.GridView.PopupMenuShowing -= GridView_PopupMenuShowing;            }        }    }