How to cancel Update and Delete Operations in a GridView

I was recently asked a simple way to cancel update and delete operation in a GridView. It is quite simple to do so as shown here:

C#

protected void gv_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    e.Cancel = true;
}

void gv_RowDeleting(Object sender, GridViewDeleteEventArgs e)
{
    // Check if there is atleast one row left in the GridView
    // before deleting
    if (gv.Rows.Count <= 1)
    {
        e.Cancel = true;
    }
}

VB.NET

Protected Sub gv_RowUpdating(ByVal sender As Object, _
                             ByVal e As GridViewUpdateEventArgs)
    e.Cancel = True
End Sub

Private Sub gv_RowDeleting(ByVal sender As Object, _
                           ByVal e As GridViewDeleteEventArgs)
    ' Check if there is atleast one row left in the GridView
    ' before deleting
    If gv.Rows.Count <= 1 Then
        e.Cancel = True
    End If
End Sub

You can also add your own conditions before cancelling these events.