GridViewPartial.cshtml

@using E4425.Models;

@(Html.DevExpress().GridView<Customer>(settings => {
    settings.Name = "grid";
    settings.KeyFields(c => c.CustomerId);
    settings.Width = System.Web.UI.WebControls.Unit.Pixel(500);
    settings.CallbackRouteValues = new { Controller = "Home", Action = "GridViewPartial" };

    settings.SettingsEditing.Mode = GridViewEditingMode.Batch;
    settings.SettingsEditing.BatchEditSettings.EditMode = GridViewBatchEditMode.Cell;
    settings.SettingsEditing.BatchUpdateRouteValues = new { Controller = "Home", Action = "GridViewEditPartial" };

    settings.CommandColumn.Visible = true;
    settings.CommandColumn.ShowNewButtonInHeader = true;
    settings.CommandColumn.ShowDeleteButton = true;

    settings.Columns.Add(c => c.CustomerId).Visible = false;
    settings.Columns.Add(c => c.CustomerName);
    settings.SettingsEditing.ShowModelErrorsForEditors = true;
    settings.Columns.Add(c => c.CountryId, country => {
        country.Caption = "Country";
        country.EditorProperties().ComboBox(cs => cs.Assign(ComboBoxPropertiesProvider.Current.CountryComboBoxProperties));
    });
    settings.Columns.Add(c => c.CityId, city => {
        city.Caption = "City";
        city.EditorProperties().ComboBox(cs => cs.Assign(ComboBoxPropertiesProvider.Current.CityComboBoxProperties));
    });
    settings.CellEditorInitialize = (s, e) => {
        ASPxEdit editor = (ASPxEdit)e.Editor;
        editor.ValidationSettings.Display = Display.None;
    };
    settings.ClientSideEvents.BatchEditStartEditing = "OnBatchEditStartEditing";

    }).Bind(Model).GetHtml())