[Solved] Fully-expanded RadGrid

[Bob]

Hi all,

I have a Prometheus RadGrid with a master table / detail table.  So when the master table loads for the first time, it displays a list of rows with a "+" sign as the first column.  If I click any "+" sign, I see my detail grid correctly.  This all works good.

My question is, can I load the radgrid so that all the detail tables are displayed initially?  That is, no having to click the "+".  It would be like they were all clicked when the page loads.

I hope this makes sense.

Thanks,
Bob

[Vlad]

Hello Bob,

You can set HierarchyDefaultExpanded to true to achieve this for desired GridTableView.

Kind regards,
Vlad
the Telerik team

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[Bob]

Hi Vlad,

This almost works.  The page is expanded like I waned.  But my first detail table has System.Data.DataRowView in each column.  It looks like an event is firing too soon.  Here is my vb.net code:

Protected

Sub rgWorkflowTasks_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles rgWorkflowTasks.NeedDataSource

If Not e.IsFromDetailTable Then

rgWorkflowTasks.DataSource = WorkflowTask.GetWorkflowTasks()

End If

End Sub

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

Dim dataItem As Telerik.Web.UI.GridDataItem = CType(e.DetailTableView.ParentItem, Telerik.Web.UI.GridDataItem)

Dim WorkflowID As String = dataItem.GetDataKeyValue("WorkflowID").ToString()

rgWorkflowTasks.MasterTableView.DetailTables(0).DataSource = WorkFlowStepTask.GetWorkFlowStepTasks(

CInt(WorkflowID))

End Sub

What am I doing wrong?

Thanks,
bob

[Vlad]

Hi Bob,

You should use e.DetailTableView.DataSource in DetailTableDataBind. Please check this example:
http://www.telerik.com/DEMOS/ASPNET/Prometheus/Grid/Examples/Programming/DetailTableDataBind/DefaultVB.aspx

Sincerely yours,
Vlad
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Bob]

That worked!

Thanks Vlad.