private void btnModificar_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                if (txtName.Text == "" ||
                    txtDepartment.Text == "" ||
                    txtStreet2.Text == "" ||
                    txtTown.Text == "" ||
                    txtStreet3.Text == "" ||
                    txtStreet1.Text == "" ||
                    ID <= 0)

                {
                    MessageBox.Show("Selecciona un Item");
                }
                else if (txtName.Text.Trim() == string.Empty)
                {
                    txtName.Focus();
                }
                else if (txtDepartment.Text.Trim() == string.Empty)
                {
                    txtDepartment.Focus();
                }
                else if (txtTown.Text.Trim() == string.Empty)
                {
                    txtTown.Focus();
                }
                else if (txtStreet1.Text.Trim() == string.Empty)
                {
                    txtStreet1.Focus();
                }
                else
                {
                    //DateTime ThisDay = new DateTime();
                    //ThisDay = Convert.ToDateTime(txtDate.Text);
                    _Office.OfficeID    = ID;
                    _Office.Code        = Code;
                    _Office.Name        = txtName.Text.ToUpper();
                    _Office.Department  = txtDepartment.Text.ToUpper();
                    _Office.Date        = DateTime.Now;
                    _Office.Town        = txtTown.Text.ToUpper();
                    _Office.StreetOne   = txtStreet1.Text.ToUpper();
                    _Office.StreetTwo   = txtStreet2.Text.ToUpper();
                    _Office.StreetThree = txtStreet3.Text.ToUpper();
                    _Office.State       = true;
                    _OfficeBL.UpdateItem(_Office);
                    //dgvOficinas.ItemsSource = _OfficeBL.GetAll();
                    Limpiar();
                    EstadoBotones(0);
                    MessageBox.Show("Registro guardado exitosamente", "Exito CRVA-MG", MessageBoxButton.OK, MessageBoxImage.Information);
                    MantenimientoOficinas _window = new MantenimientoOficinas();
                    _window.Show();
                    Close();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Algo anda mal : " + ex.Message, "Error CRVA-UG", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }
        private void btnMantOficinas_Click(object sender, RoutedEventArgs e)
        {
            MantenimientoOficinas Window = new MantenimientoOficinas();

            this.Hide();
            Window.ShowDialog();
            Close();
        }