[Rabeea Qbaha]

كود :

Public Function GetMaid() As Integer
       Dim x As Integer = 0
       If Con.State = ConnectionState.Closed Then
           Con.Open()
       End If

      Dim adp As New OleDbCommand("select max (user_id) from users", Con)
       Try
           x = adp.ExecuteScalar

           Return x
       Catch ex As Exception
           Return x
           Con.Close()
       End Try

   End Function