I have a GridView of contacts that contains an embedded gridview of multiple
phones for that particular contact.  I have a LinkButton on the contacts
GridView that refers to the Select command and when I click it the embedded
GridView of phones becomes visible.  Now I would like to have it toggle so
that if the embedded GridView is visible, it will become Visible = False.
Below is the code I have but it creates an error "Object reference not set
to an instance of an object" c on the first IF statement.  Can someone
advise?  Code is below:

   Protected Sub LBtnMorePhones_Click(ByVal sender As Object, ByVal e As
CommandEventArgs)
       txtcnid.Text = e.CommandArgument
       Dim row As GridViewRow = gvContacts.SelectedRow
       If Not row.FindControl("gvMorePhones") Is Nothing Then
           Dim varControl
           varControl = row.FindControl("gvMorePhones")
           If Not varControl Is Nothing Then
               varControl.Visible = Not varControl.Visible
           End If
       End If
   End Sub