ASPxClientTreeListClipboardCellPastingEventArgs.oldValue Property

Obtains the old value of the cell.

Declaration

oldValue: any

Property Value

Type	Description
any	The cell value.

Remarks

The following example illustrates how to modify data before pasting to the control in the ClipboardCellPasting event handler:

Web Forms:

ASPX

<dx:ASPxTreeList ID="TreeList1" runat="server" ...>
    <ClientSideEvents 
        ClipboardCellPasting="onClipboardCellPasting" />
    <SettingsEditing Mode="Batch">
        <BatchEditSettings EnableMultipleCellSelection="True" />
    </SettingsEditing>
</dx:ASPxTreeList>

JS

function onClipboardCellPasting(s, e) {
    if (e.cellInfo.column.fieldName == 'CategoryID') {
        // your code
        e.newValue = e.oldValue;
    }
}

MVC:

CSHTML

@Html.DevExpress().TreeList(settings => {
    settings.Name = "treeList";
    settings.ClientSideEvents.CellSelectionChanging = "function (s, e) { 
        if (e.cellInfo.column.fieldName == 'CategoryID') {
            // your code
            e.newValue = e.oldValue;
        }        
    }"; 
    settings.Columns.Add("CategoryID");
    ...
}).Bind(Model).GetHtml()