If e.CommandName = "Select" Then
        'Add to session variable; translate the index of clicked to Primary Key
        Session.Add("DetailsKey", GridView1.DataKeys(e.CommandArgument).Value.ToString)
        Response.Redirect("staffstaff.aspx")
    End If

Response.Redirect("~/staff/staff.aspx")

Response.Redirect("~/staff/staff.aspx");

Dim odid As Integer = Convert.ToInt32(e.CommandArgument)
    Response.Redirect("~/OrderDetails.aspx?invo=" + odid + "")


End Sub