XAF 如何实现ListView单元格批量更改?

XAF 如何实现ListView单元格批量更改?

 

   public partial class GridViewCellsValueUpdateViewController : ViewController
    {
        public GridViewCellsValueUpdateViewController()
        {
            InitializeComponent();
            RegisterActions(components);
        }
        protected override void OnActivated()
        {
            base.OnActivated();
            //this.paUpdateCellsValue.Enabled.SetItemValue("ObjectType", SecuritySystem.IsGranted(new ActionAccessPermission(this.paUpdateCellsValue.Id, DevExpress.ExpressApp.Security.ObjectAccessModifier.Allow)));
         }
        private GridView gridView = null;
        private void GridViewCellsValueUpdateViewController_ViewControlsCreated(object sender, EventArgs e)
        {
            gridView = ((View as ListView).Editor as GridListEditor).GridView;
            gridView.OptionsSelection.MultiSelect = true;
            gridView.OptionsSelection.MultiSelectMode = GridMultiSelectMode.CellSelect;
        }

        private void paUpdateCellsValue_Execute(object sender, ParametrizedActionExecuteEventArgs e)
        {
            if (e.ParameterCurrentValue == null) return;
            gridView.ClearSorting();

            DevExpress.XtraGrid.Views.Base.GridCell[] selectedCells = gridView.GetSelectedCells();
            object obj = null;
            foreach (var item in selectedCells)
            {
                string typeName = item.Column.ColumnType.Name;
                if (typeName == "String" || typeName == "Double" || typeName == "DateTime" || typeName == "Int32")
                {
                    if (item.Column.FieldName == "Create_Date" || item.Column.FieldName == "Write_Date")
                    { obj = null; }
                    else
                    {obj = e.ParameterCurrentValue;  }
                }
                else
                {
                    obj = ((ObjectSpace)View.ObjectSpace).Session.FindObject(item.Column.ColumnType, new BinaryOperator

                        ("Name", e.ParameterCurrentValue, BinaryOperatorType.Equal));
                }
                if (obj != null)
                { gridView.SetRowCellValue(item.RowHandle, item.Column, obj); }
                obj = null;
            }
        }
    }