How to bind inner grid of Hierarchy with Templates Grid

[Amol]

Hi all,

I have Grid / Hierarchy with Templates same as this. I want to bind grids on server side without using DataSourceID as in given e.g.

Please suggest me that in which event should i bind inner grid ?
Inner grid records are depends on its parent grid record.
Inner grid has paging , sorting , group footer functionality.


Thanks,
Amol Wable

[Princy]

Hello Amol,

You can access the Nested Grid when a parent row is expanded in the PreRender event and set the datasource as shown in the code below:
aspx:

 <telerik:RadGrid ID="RadGrid1" DataSourceID="SqlDataSource1" runat="server" OnPreRender="RadGrid1_PreRender" >
        <MasterTableView DataSourceID="SqlDataSource1">
           <NestedViewTemplate>
               <telerik:RadTabStrip runat="server" ID="TabStrip1" MultiPageID="Multipage1" SelectedIndex="0">
                <Tabs>
                  <telerik:RadTab runat="server" Text="Orders" PageViewID="PageView1">
                  </telerik:RadTab>
                </Tabs>
              </telerik:RadTabStrip>
              <telerik:RadMultiPage runat="server" ID="Multipage1" SelectedIndex="0" RenderSelectedPageOnly="false">
                <telerik:RadPageView runat="server" ID="PageView1">

                   <telerik:RadGrid runat="server" ID="RadGrid2">
                       <MasterTableView>
                          ......
                       </MasterTableView>
                   </telerik:RadGrid>

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

c#:

 protected void RadGrid1_PreRender(object sender, EventArgs e)
    {

        foreach (GridDataItem item in RadGrid1.MasterTableView.Items)
        {
            if (item.Expanded)
            {

                foreach (GridNestedViewItem item1 in RadGrid1.MasterTableView.GetItems(GridItemType.NestedView))
                {
                    RadGrid grid = (RadGrid)item1.FindControl("RadGrid2");
                    grid.DataSource = "  "; //set the DataSource here
                }
            }
        }
   }

Thanks
Princy.

[Amol]

Hello Princy,

Thanks for your quick reply,
I have removed inner foreach loop from above PreRender function,
it works fine.

 protected void rgJobLead_PreRender(object sender, EventArgs e)
    {
        JobLead objJobLead = new JobLead();
        foreach (GridDataItem item in rgJobLead.MasterTableView.Items)
        {
            if (item.Expanded)
            {
                int JobLeadID = Convert.ToInt32(item["JobLeadID"].Text);
                GridNestedViewItem item1 = item.ChildItem;
                if (item1 != null)
                {
                    RadGrid rgNotes = (RadGrid)item1.FindControl("rgNotes");
                    rgNotes.DataSource = objJobLead.GetJobLeadNotesByJobLeadID(JobLeadID);
                    rgNotes.DataBind();
                }
            }
        }
    }

Thanks,
Amol