Getting DataKeyValue of top grid when expanding to display NestedView Template

[Karl Wilkens]

Hi,

I am trying to get the datakey value of a row when expanding it to display a nestedViewTemplate.

When the grid is initially populated, I get the datakey values fine within the ItemCreated event.

Dim myID = CInt(e.Item.OwnerTableView.DataKeyValues(e.Item.ItemIndex)("whatever"))

But when the expand icon is clicked that code throws an error - {"Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"}

Any thoughts on what I am doing wrong here? Thanks.

[Jayesh Goyani]

Hello,

Please try with below code snippet.

// Access current item
GridNestedViewItem citem = e.Item as GridNestedViewItem;
string cID = citem.GetDataKeyValue("whatever").ToString() ;

// Access Parent Item
GridDataItem pitem = ((GridNestedViewItem)e.Item).ParentItem as GridDataItem;
string pID = pitem.GetDataKeyValue("whatever").ToString() ;

also check below link for reference.
http://www.telerik.com/community/forums/aspnet-ajax/grid/how-to-get-the-parent-griddataitem-from-a-nested-view-control.aspx

Thanks,
Jayesh Goyani