Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
  If Request.Params("CampaignID") = Nothing Then
    'There is no record to edit, set the form to Insert mode
    Me.DetailsView1.DefaultMode = DetailsViewMode.Insert
  Else
    'User requested a Campaign record to view
    Me.DetailsView1.DefaultMode = DetailsViewMode.ReadOnly
  End If
End Sub