Hi Dess, thanks for the reply.
The code used is a copy of the example:
Private Sub radGridView1_ViewCellFormatting(sender As Object, e As CellFormattingEventArgs)
Dim cell As GridDetailViewCellElement = TryCast(e.CellElement, GridDetailViewCellElement)
Dim expanderCell As GridGroupExpanderCellElement = TryCast(e.CellElement, GridGroupExpanderCellElement)
If expanderCell IsNot Nothing AndAlso TypeOf e.CellElement.RowElement Is GridDataRowElement Then
Dim hierarchyRow As GridViewHierarchyRowInfo = DirectCast(expanderCell.RowInfo, GridViewHierarchyRowInfo)
If Not IsExpandable(hierarchyRow) Then
expanderCell.Expander.Visibility = Telerik.WinControls.ElementVisibility.Hidden
Else
expanderCell.Expander.Visibility = Telerik.WinControls.ElementVisibility.Visible
End If
ElseIf cell IsNot Nothing Then
Dim hierarchyRow As GridViewHierarchyRowInfo = DirectCast(DirectCast(cell.RowInfo, GridViewDetailsRowInfo).Owner, GridViewHierarchyRowInfo)
For i As Integer = 0 To cell.PageViewElement.Items.Count - 1
Dim item As RadPageViewItem = cell.PageViewElement.Items(i)
Dim viewInfo As GridViewInfo = hierarchyRow.Views(i)
item.Text = "Child Template " & i
If viewInfo.ChildRows.Count = 0 Then
If i = 0 AndAlso i < cell.PageViewElement.Items.Count - 1 Then
cell.PageViewElement.Items(i + 1).IsSelected = True
End If
item.Visibility = Telerik.WinControls.ElementVisibility.Collapsed
Else
item.Visibility = Telerik.WinControls.ElementVisibility.Visible
End If
Next
End If
End Sub
Private Function IsExpandable(hierarchyRow As GridViewHierarchyRowInfo) As Boolean
For Each view As GridViewInfo In hierarchyRow.Views
If view.ChildRows.Count > 0 Then
Return True
End If
Next
Return False
End Function
I attach a gif image where you can see how RadGrid expands two or more rows when clicking.
Thank you very much
Martin.