Merge DataGrid Header

Introduction

Another way to is to handle the ItemDataBound event. 

Background

You want to do colspan on a DataGrid header.

Using the code

Catch ItemDataBound. Test for the header. You can also do colspan tricks to data rows.

Private Sub AreaGrid_ItemDataBound(ByVal sender As Object, _
        ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) _
        Handles AreaGrid.ItemDataBound
    If e.Item.ItemType = ListItemType.Header Then
     
        'remove third cell and extend the second cell 
            e.Item.Cells.RemoveAt(2)
            e.Item.Cells(1).ColumnSpan = 2
          
        Return 
    End If
End Sub