Telerik Radgrid GridDataItem.DataItem is empty when updating (OnUpdateCommand handler)

asp.netradgridtelerik

When handling the OnUpdateCommand event on a RadGrid the DataItem is null.

I thought that this would also represent the data item being represented by the row.

The Radgrid is populated from an IList and in the handler the code looks like this…

protected void rgAllocatedClients_UpdateCommand(object sender, GridCommandEventArgs e)
{
    if (e.Item is GridDataItem)
    {
        var gridDataItem = e.Item as GridDataItem;
        var client= gridDataItem .DataItem as Client;
        ....
        ....

This works find when handling the ItemDataBound event but not when handling the UpdateCommand event. I really need this as in my Client class is the Id of the row I want to handle the update for.

Thanks,

Best Answer

Assuming your Grid is in Edit mode befor ethe Update Command, you should cast e.Item to GridEditableItem instead of GridDataItem

Related Solutions

Telerik RadGrid doesn’t display on first Page_Load but does on postback

I have a very similar issue with nested Multipage with RadGrid in RadGrid

aspx:

<telerik:RadTabStrip><Tabs><!-- ... --></Tabs></telerik:RadTabStrip>
<telerik:RadMultiPage>
<telerik:RadPageView>

<!-- ChildRadGrid1 doesn't display on first time but does on postback --> 
<telerik:RadGrid ID="ChildRadGrid1"><!-- ... --></telerik:RadGrid>

<telerik:RadPageView>
</telerik:RadMultiPage>
</NestedViewTemplate>

<!-- Columns... -->

</MasterTableView>
</telerik:RadGrid>

In my case, only Rebind() in ItemCommand of parent grid helps me:

aspx.cs:

class MyPage : Page
{
  protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
  {
    if (e.CommandName == RadGrid.ExpandCollapseCommandName && e.Item is GridDataItem)
    {
      var dataItem = e.Item as GridDataItem;

      // rebiding fix situation    
      (dataItem.ChildItem.FindControl("ChildRadGrid1") as RadGrid).Rebind();
    }
  }
}

Iterate over rows/checkboxes in a RadGrid

Telerik got back to me on their forums with the answer, as follows:

foreach (GridDataItem item in MyRadGrid.MasterTableView.Items) 
{ 
  CheckBox chk = (CheckBox)item.FindControl("MyCheckBox");
  // Set the value here
}

Hope this is useful for someone!

Best Answer

Related Solutions

Telerik RadGrid doesn’t display on first Page_Load but does on postback

Iterate over rows/checkboxes in a RadGrid

Related Topic