how to rebind a detailtable on rowdrop ?

[mac]

hi. Using the drag and drop method... which is awesome. i can't get the detail table where i dropped my rows onto to rebind though.
scenario: two grids, Radgrid2 drops onto Radgrid1 which has a detailTables hierarchy. I am using the method to only allow for one detail table to be open at a time. user can drop either into the detail or straight onto the master.
I am calling detailTables(0).rebind()  at the end of my insert, but that isn't firing. however if I rebind the whole grid it works?
mac

Protected Sub RadGrid1_ItemCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles RadGrid1.ItemCommand
        If e.CommandName = RadGrid.ExpandCollapseCommandName Then
            Dim item As GridItem
            For Each item In e.Item.OwnerTableView.Items
                If item.Expanded AndAlso Not item Is e.Item Then
                    item.Expanded = False
                End If
            Next item
        End If
    End Sub

    Protected Sub RadGrid1_DetailTableDataBind(ByVal source As Object, ByVal e As Telerik.Web.UI.GridDetailTableDataBindEventArgs) Handles RadGrid1.DetailTableDataBind
        msg.Text = e.DetailTableView.ParentItem.GetDataKeyValue("costcentre").ToString
    End Sub

    Protected Sub RadGrid2_RowDrop(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridDragDropEventArgs) Handles RadGrid2.RowDrop
        Dim dest As String = ""
        Dim empid As String = e.DraggedItems.Item(0).GetDataKeyValue("Emp_id")
        If e.DestDataItem.GetDataKeyValue("costcentre") IsNot Nothing Then
            dest = e.DestDataItem.GetDataKeyValue("costcentre")
        Else
            dest = msg.Text ' in the event that the user has opened the detailtable(0)
        End If
        If dest IsNot Nothing Then
            For i As Integer = 0 To e.DraggedItems.Count - 1
                'insert the items
                functions.nonqry(ConnStrings.ConnectionStrings, "insert into account (name,accountno) values ('" & dest & "','" & e.DraggedItems.Item(i).GetDataKeyValue("Emp_id") & "')")
            Next
        End If
        Literal1.Text = "CC = " & dest & " " & Date.Now & empid & "     " & e.DestinationGrid.UniqueID.ToString
        'update the detail table
        RadGrid1.MasterTableView.DetailTables(0).Rebind()

    End Sub

    <div>
         <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Conn %>"
             SelectCommand="SELECT distinct  [Cost_centre]+ '-' + [Site] as costcentre,  [ID] FROM [tbl_delegate]">
         </asp:SqlDataSource>
         <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:Conn %>"
             SelectCommand="SELECT [name] AS costcentre , accountNo as  Emp_id
             FROM dbo.account WHERE (name = @CostCentre)">
             <SelectParameters>
                 <asp:ControlParameter ControlID="RadGrid1" Name="CostCentre" PropertyName="SelectedValue" />
             </SelectParameters>
         </asp:SqlDataSource><asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$ ConnectionStrings:PHCJobPostsConn %>"
             SelectCommand="Select top 20 Emp_id, EmpFirstName, EmpLastname from tbl_Current_status">
         </asp:SqlDataSource>
         <br />
         <telerik:RadGrid ID="RadGrid2" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource3"
             GridLines="None" AllowPaging="True" AllowMultiRowSelection="True" Width="200px">
             <MasterTableView DataKeyNames="Emp_id" DataSourceID="SqlDataSource3">
                 <RowIndicatorColumn>
                     <HeaderStyle Width="20px" />
                 </RowIndicatorColumn>
                 <ExpandCollapseColumn>
                     <HeaderStyle Width="20px" />
                 </ExpandCollapseColumn>
                 <Columns>
                     <telerik:GridBoundColumn DataField="Emp_id" HeaderText="Emp_id" ReadOnly="True" SortExpression="Emp_id"
                         UniqueName="Emp_id">
                     </telerik:GridBoundColumn>
                     <telerik:GridBoundColumn DataField="EmpFirstName" HeaderText="EmpFirstName" SortExpression="EmpFirstName"
                         UniqueName="EmpFirstName">
                     </telerik:GridBoundColumn>
                     <telerik:GridBoundColumn DataField="EmpLastname" HeaderText="EmpLastname" SortExpression="EmpLastname"
                         UniqueName="EmpLastname">
                     </telerik:GridBoundColumn>
                 </Columns>
             </MasterTableView>
             <ClientSettings AllowRowsDragDrop="True">
                 <Selecting AllowRowSelect="True" EnableDragToSelectRows="False" />
             </ClientSettings>
             <FilterMenu EnableTheming="True">
                 <CollapseAnimation Duration="200" Type="OutQuint" />
             </FilterMenu>
         </telerik:RadGrid><br />
         <br />
         <br />
         <telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"
             GridLines="None" AllowPaging="True" Width="500px">
             <MasterTableView DataKeyNames="costcentre" DataSourceID="SqlDataSource1">
                 <DetailTables>
                     <telerik:GridTableView runat="server"  AutoGenerateColumns="True" DataKeyNames="emp_id"
                         DataSourceID="SQLDataSource2">
                         <ParentTableRelation>
                         <telerik:GridRelationFields DetailKeyField="costcentre" MasterKeyField="costcentre" />
                         </ParentTableRelation>
                         <RowIndicatorColumn>
                             <HeaderStyle Width="20px" />
                         </RowIndicatorColumn>
                         <ExpandCollapseColumn>
                                                 <HeaderStyle Width="20px"  />

                         </ExpandCollapseColumn>
                         <PagerStyle Mode="Slider" />
                     </telerik:GridTableView>
                 </DetailTables>
                     <Columns>
                     <telerik:GridBoundColumn DataField="Costcentre" HeaderText="Cost_centre" SortExpression="Cost_centre"
                         UniqueName="Cost_centre">
                     </telerik:GridBoundColumn>
                                         <telerik:GridBoundColumn DataField="ID" DataType="System.Int32" HeaderText="ID" ReadOnly="True"
                         SortExpression="ID" UniqueName="ID">
                     </telerik:GridBoundColumn>
                 </Columns>

             </MasterTableView>

             <FilterMenu EnableTheming="True">
                 <CollapseAnimation Duration="200" Type="OutQuint" />
             </FilterMenu>


         </telerik:RadGrid>
         <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
             <AjaxSettings>
                 <telerik:AjaxSetting AjaxControlID="RadGrid2">
                     <UpdatedControls>
                         <telerik:AjaxUpdatedControl ControlID="RadGrid2" />
                         <telerik:AjaxUpdatedControl ControlID="RadGrid1" />
                         <telerik:AjaxUpdatedControl ControlID="msg" />
                         <telerik:AjaxUpdatedControl ControlID="Literal1" />
                     </UpdatedControls>
                 </telerik:AjaxSetting>
                 <telerik:AjaxSetting AjaxControlID="RadGrid1">
                     <UpdatedControls>
                         <telerik:AjaxUpdatedControl ControlID="msg" />
                         <telerik:AjaxUpdatedControl ControlID="Literal1" />
                     </UpdatedControls>
                 </telerik:AjaxSetting>
             </AjaxSettings>
         </telerik:RadAjaxManager>
         <br />
         <br />
         <asp:Literal ID="msg" runat="server"></asp:Literal>
         <asp:Literal ID="Literal1" runat="server"></asp:Literal></div>

[Rosen]

Hello mac,

You may try using the destinationItem's OwnerTableView property in order to access the GridTableView object to which it belongs. Similar to this:

e.DestDataItem.OwnerTableView.Rebind()

Please give it a try and let us know if this helps.

Sincerely yours,
Rosen
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[mac]

Good day. Thank you for your reply. The suggested method does work in part. I find that if the nested table has no records, you cannot drag a row into that detail table. You have to instead drag the row into the master table. This causes the table to once again rebind and collapse the opened items. However if the row does happen to have rows already in it, it will refresh the detail table and leave everything else alone. At lease that is what I am finding. 

I wonder if it might be easier to somehow traverse the rows looking for the affected datakeyvalue and upon finding it, just expand the detail. This would solve the issue of dropping items onto the master table as well as onto the detail table at the same time I would think.

thoughts? cheers.

[Rosen]

Hello mac,

Unfortunately this is a limitation of the current items drag&drop functionality implementation. However, our developers have addressed it and such scenarios will be possible with this year's Q3 version of RadControls For ASP.NET AJAX, expected at the beginning of November. Meanwhile I have updated your telerik points for the feedback.

Please excuse us for the temporary inconvenience.

Best regards,
Rosen
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[Priya]

Sir,

I want  to rebind only the detail table of a radgrid while closing the radwindow.no need to rebind parentgrid and also the detailtable should be in expanded mode after this rebind
thanks..

[Rosen]

Hello Priya,

Can you please provide little more details about your scenario and implementation, as I'm not sure I understend the scenario you are describing.

Sincerely yours,
Rosen
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[Dan]

How could I rebind all 3 of the tables on the page after a RowDrop function, if this is possible since they are not all involved in the RowDrop event but he data will chance as a result of a SQL query in the RowDrop event.
Thanks,
Dan