Hi Sir Can you send me an example how to use multiple band  on load demand in c# .

In My Code I need to populate third level of my WHDG.

protected void WebHierarchicalDataGrid_RowIslandsPopulating(object sender, ContainerRowCancelEventArgs e)

        {

            //Cancel the default automatic load on demand operation

            e.Cancel = true;

            // Get the data key

            int key = (int)e.Row.DataKey[0];

            _itemClass.MyItemReqId = key;

            var first = _itemClass.MyItemReqDetailQByItemReqIdRead(); //Datatable

            // Create Container Grid

            ContainerGrid childGrid = new ContainerGrid();

            childGrid.InitializeRow += Child_InitializeeRow;

            e.Row.RowIslands.Add(childGrid);

            // Bind Grid

            childGrid.DataSource = first;

            childGrid.DataBind();

 ///---------------------------------------------------------------------------------------------------------

 IN this area i need to get the key from  the firstchild i used to follow your example in vb but i always get an error.

                _itemClass.MyItemReqDetailId = (int)e.Row.RowIslands[0].Rows[0].DataKey[0];

                var second = _itemClass.MyErploctransByItemReqDetailIdRead();

                ContainerGrid child1 = new ContainerGrid();

                child1.InitializeRow += Child1_InitializeeRow;

                e.Row.RowIslands[0].Rows[0].RowIslands.Add(child1);

                child1.DataSource = second;

                child1.DataBind();

        }