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

;

            }

        }

    }