在ASP.NET MVC中使用Kendo MultiSelect和Kendo UI Grid

这与我最近提出的另一个问题有关.我正在尝试将用户角色信息绑定到网格,我正在为用户分配角色.每个用户可以在数据库中担任多个角色,这些角色应使用Kendo UI MultiSelect进行编辑.

当我选择所需的角色并回发给控制器时,"RoleBasicModel"对象数组包含所需数量的角色,但它们的所有属性都是空的.

模型定义为:

public class UserInfo
{
    public string UserId { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string UserName { get; set; }
    public string Roles { get; set; }
    public IEnumerable RoleList { get; set; }
}
public class RoleBasicModel
{
    public string Id { get; set; }
    public string Text { get; set; }
}

网格设置为:

    @(Html.Kendo().Grid()
    .Name("userGrid")
    .Columns(columns =>
    {
        columns.Bound(p => p.UserName);
        columns.Bound(p => p.FirstName);
        columns.Bound(p => p.LastName);
        columns.Bound(p => p.Roles).EditorTemplateName("RoleListEditor").Template(p => p.RoleList);
        columns.Command(command => { command.Edit(); command.Destroy(); });
    })
    .Filterable()
    .Sortable()
    .Resizable(r => r.Columns(true))
    .Editable(editable => { editable.Mode(GridEditMode.InLine); editable.DisplayDeleteConfirmation("Are you sure you want to remove this user?"); })
    .HtmlAttributes(new { style = "min-height:90px;max-height:450px;" })
    .DataSource(dataSource => dataSource
        .Ajax()
        .Events(events => events.Error("error_handler"))
        .Model(model =>
        {
            model.Id(p => p.UserId);
            model.Field(p => p.UserId).Editable(false);
            model.Field(p => p.FirstName).Editable(true);
            model.Field(p => p.LastName).Editable(true);
            model.Field(p => p.UserName).Editable(false);
            model.Field(p => p.RoleList).Editable(true);
        }
        ).Read(read => read.Action("GetAllUsers", "Admin").Type(HttpVerbs.Get))
        .Update(update => update.Action("UpdateUser", "Admin").Type(HttpVerbs.Post))
        .Destroy(update => update.Action("DeleteUser", "Admin").Type(HttpVerbs.Post))
    )
)

我的编辑器模板使用了Kendo MultiSelect,定义如下:

@Html.Kendo().MultiSelect().Name("RoleList").DataTextField("Text").DataValueField("Id").BindTo((IEnumerable)ViewData["uroles"]).Placeholder("No role selected")

发送回服务器的数据是否为空是否有明显的原因？我怀疑我错过了MultiSelect控件中的某些内容,它将定义要使用的正确模型.我已经提到了经常被引用作为类似问题的答案的测试项目,但我对此也没有任何喜悦.

根据要求,我正在使用的控制器(简化版):

 public ActionResult ManageUsers()
    {            
        PopulateRoles();
        return View();
    }

    private void PopulateRoles()
    {
        ViewData["uroles"] = new ApplicationDbContext().Roles.Select(r => new RoleBasicModel { Text = r.Name, Id = r.Id }).ToList();
    }

    [AcceptVerbs(HttpVerbs.Get)]
    public ActionResult GetAllUsers([DataSourceRequest]DataSourceRequest request)
    {
        using (var context = new ApplicationDbContext())
        {
            var allUsers = context.Users.ToList().Select(x =>
                new UserInfo
                {
                    UserName = x.UserName,
                    UserId = x.Id,
                    FirstName = x.FirstName,
                    LastName = x.LastName,
                    RoleList = x.Roles.Select(p => new RoleBasicModel { Text = p.Role.Name, Id = p.RoleId }),
                    Roles = string.Join(", ", x.Roles.Select(p => p.Role.Name).ToList())
                }).ToList();
            return Json(allUsers.ToDataSourceResult(request), JsonRequestBehavior.AllowGet);
        }
    }

    [AcceptVerbs(HttpVerbs.Post)]
    public ActionResult UpdateUser([DataSourceRequest] DataSourceRequest request, UserInfo user)
    {
        if (user != null && ModelState.IsValid)
        {
            using (var context = new ApplicationDbContext())
            {
// Do something with the user details
            }
        }

        return Json(new[] { user }.ToDataSourceResult(request, ModelState));
    }

编辑:在查看发回服务器的数据时,看起来好像未正确解析所选对象的数组.格式应为RoleList [0] .Id:123456,而是RoleList [0] [Id]:123456.我认为这可能是MultiSelect控件的问题,而不是我编写的任何代码？