private void btnRegistrar_Click(object sender, EventArgs e)
        {
            var register = new ClientRegister();
            var client   = new Client();

            client.CellPhone = mskTxtCel.Text;
            client.City      = txtCidade.Text;
            client.Name      = txtName.Text;
            if (!String.IsNullOrEmpty(txtMatricula.Text))
            {
                client.Registration = Convert.ToInt32(txtMatricula.Text);
            }
            client.State = cbEstado.Text;
            client.Name  = txtName.Text;
            if (!ValidateUtil.ValidClient(client))
            {
                lblMessage.Text = Messages.RequiredFields;
            }
            else
            {
                lblMessage.Text      = register.Insert(client);
                dtvClient.DataSource = RefreshGrid();
                CleanFields();
            }
        }