Hide Headers declaratively in detail tables?

[mac]

Good day.. busy day on the forums for me. sadly.
Mastertable view has two DetailTables within it. They are nested as :
<MasterTableView>
    <DetailTable>
    </DetailTable>
    <DetailTable>
    </DetailTable>
</MasterTableView>

I need to evaluate whether or not there are records within the detailtable and if the detailtable is emplty, then hide the header. Problem is that I can't see where or how to count the records when the mastertable is expanded. I have tried to run RemoveHeaders()  within the radgrid pre_render, DetailTableDataBound, ItemDatabound and ItemDataBinding.. but none are working as expected. thank you for any assistance you can provide.
mac
code is as follows

Protected Sub RadGrid1_DetailTableDataBind(ByVal source As Object, ByVal e As Telerik.Web.UI.GridDetailTableDataBindEventArgs) Handles RadGrid1.DetailTableDataBind

removeheaders()

End Sub

Sub removeheaders()

' RadGrid1.Controls.Add(New LiteralControl(RadGrid1.MasterTableView.DetailTables.Count)) //This should return mastertable recordcount

' RadGrid1.Controls.Add(New LiteralControl(RadGrid1.MasterTableView.DetailTables(0).Items.Count))//This should return Detail 1 recordcount

' RadGrid1.Controls.Add(New LiteralControl(RadGrid1.MasterTableView.DetailTables(1).Items.Count))//This should return Detail 2 recordcount

For i As Integer = 0 To RadGrid1.MasterTableView.DetailTables.Count - 1 ' Count the Detail table within MasterTable

If RadGrid1.MasterTableView.DetailTables(i).Items.Count <= 0 Then

RadGrid1.MasterTableView.DetailTables(i).ShowHeader = False

Else

RadGrid1.MasterTableView.DetailTables(i).ShowHeader = True

End If

Next   End Sub

[Iana Tsolova]

Hi mac,

You could try hiding the headers on RadGrid.PreRender by looping through all nested GridTableViews and setting the header items display Style property to none.

However, I suggest that you look at this article describing how to hide expand/collapse images when no records.

Check it out and let me know if any issues arise.

Kind regards,
Iana
the Telerik team

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[Kenneth Mazur]

If the GridTableViews are being generated dynamically and added to the MasterTableView, and one is using the DetailTableDataBind to fill it with data, how can the "expand/collapse" image be turned off.

I've tried the RadGrid.Pre_Render event using the HideExpandColumnRecursive function found in one of your examples.  But the DetailTableDataBind event isn't getting fired before the Pre_Render event.

I've tried setting the GridTableView.HierarchyLoadMode = GridChildLoadMode.ServerBind in the Page_Init event where I generate the entire RadGrid and GridTableViews dynamically.  But it still does not fire the DetailTableDataBind event prior to the Pre_Render event.

Any ideas.

[Iana Tsolova]

Hello Kenneth,

I followed your scenario and prepared a sample project for you attached to this post. PLease try it on your end and see if it works for you.

Let me know if I missed something from your logic.

Best wishes,
Iana
the Telerik team

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[Dan]

Is there an updated page for this link? I would like to hide the expand/collapse images when a given detail table contains no records.

For anyone else looking, the correct link is here: http://www.telerik.com/help/aspnet-ajax/grid-hide-expand-collapse-images-when-no-records.html