[Solved] How To Select First Row of Detail Grid in Master/Detail Grid on PreRender?

[jgill]

I’m having a problem with the selection of rows in a Master/Detail Grid.

 

Scenario: I have a page with two grids that are connected via a Master/Detail relationship.  It is similar to http://demos.telerik.com/aspnet-ajax/grid/examples/programming/selectedvalue/defaultcs.aspx, except I have two grids instead of three and my page’s pre-render event codebehind looks like:

Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender
            If RadGrid1.SelectedIndexes.Count = 0 Then
                RadGrid1.SelectedIndexes.Add(0)
            End If
        End Sub

 

When the page loads for the first time, the first row in the Master grid is selected, but not the first row in the Detail grid. 

 

I wanted to know how to select the first row in the Detail Grid of a Master/Detail Grid on the first load of the page if the Detail grid has any rows related to that particular Master grid item at Index(0).

[Shinu]

Hi Jgill,

Try the following code snippet:

VB:

Protected Sub RadGrid1_PreRender(ByVal sender As Object, ByVal e As EventArgs)
    If RadGrid1.SelectedIndexes.Count = 0 Then
        RadGrid1.MasterTableView.Items(0).Selected = True
        RadGrid1.MasterTableView.Items(0).ChildItem.NestedTableViews(0).Items(0).Selected = True
    End If
End Sub

-Shinu.

[jgill]

Hi Shinu,
Thank you.  The grids are actually not nested.  There is a RadGrid1 and RadGrid two that are related to each other in a Master/Detail relationship.