Accessing parent key on NeedDatasource

[Lajos]

Hello, Telerik Team,

I have a question about hierarchical RadGrids. I have a hierarchical RadGrid, called RadGrid1. Inside RadGrid1.MasterTableView.NestedViewTemplate I have another grid, RadGrid2. Both of the RadGrids are created from code behind. I've defined this relation:

RadGrid1.MasterTableView.NestedViewSettings.ParentTableRelation.Add(New Telerik.Web.UI.GridRelationFields() With {.DetailKeyField = "ID", .MasterKeyField = "ID"})

My question is: How can I get the ID of the parent table in RadGrid2.NeedDatasource event?

Thank you in advance,
Lajos Arpad.

[Princy]

Hello Lajos,

Try the following code snippet.
C#:

protected void RadGrid2_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
  RadGrid innergrid=(RadGrid)sender;
  GridNestedViewItem nesteditem = (GridNestedViewItem)innergrid.NamingContainer;
  string dataKeyValue = Convert.ToString(((GridDataItem)(nesteditem.ParentItem)).GetDataKeyValue("ID"));
}

Thanks,
Princy.

[Lajos]

Hello, Princy, thank you for your answer, it worked like a charm.