MVC控制器傳遞JSON數據，但Kendo Grid不顯示它

Question

我在Razor PartialView內運行了一些（動態分配的數量）Kendo網格。 網格旨在通過AJAX從MVC控制器請求其數據。 控制器接收到讀取請求，請求很好，然后控制器通過JSON將數據通過JSON傳遞回線路（通過Fiddler驗證）。 不幸的是，網格從不顯示數據。 我是新來的，對從哪里開始感到迷茫。 據我所知，該代碼與此場景中的Kendo示例匹配。 這不是數據或模型問題，因為兩者均在應用程序的其他部分中使用而沒有問題。

控制器：

public class MemberController : Controller
{
    private MemberContext db = new MemberContext();
    [AcceptVerbs(HttpVerbs.Post)]
    public ActionResult Grid_Member_Read([DataSourceRequest] DataSourceRequest request,
        int club_id)
    {
        var results = from r in db.Members where r.MemberClub.Id == club_id select r;
        return Json(results.ToDataSourceResult(request));
    }
}

PartialView：

@(Html.Kendo().Grid<RegistrationManagement.Models.Member>()
.Name("MembersGrid")
.Columns(columns =>
{
    columns.Bound(p => p.LastName);
    columns.Bound(p => p.FirstName);
    columns.ForeignKey(p => p.MemberStatusID, (System.Collections.IEnumerable)ViewData["status"], "Value", "Text");
    columns.Bound(p => p.RegistrationYear);
    columns.Bound(p => p.StreetAddress1);
    columns.Bound(p => p.StreetAddress2);
    columns.Bound(p => p.State);
    columns.Bound(p => p.ZipCode);
    columns.Bound(p => p.Email);
    columns.Bound(p => p.PhoneNumber);
    columns.Command(command => { command.Custom("Edit2").Click("CustomEdit"); command.Edit(); command.Destroy(); }).Width(160);

})
        .ToolBar(toolbar => toolbar.Create())
.Editable()
.Groupable()
.Pageable()
.Sortable()
.Scrollable()
.Filterable()
.DataSource(dataSource => dataSource
    .Ajax()
    .PageSize(20)
    .Batch(true)
    .ServerOperation(false)
    .Events(events => events.Error("error_handler"))
    .Model(model =>
        {
            model.Id(p => p.Id);
            model.Field(p => p.MemberStatus).Editable(false);
        })
    .Read(read => read
        .Action("Grid_Member_Read", "Member", new { club_id = @ViewBag.ClubID })

    )
    .Create(create => create.Action("Grid_Member_Create", "Member", new { ClubID = @ViewBag.ClubID }))
    .Update(update => update.Action("Grid_Member_Update", "Member"))
    .Destroy(destroy => destroy.Action("Grid_Member_Destroy", "Member"))
 )
)

function error_handler(e) {
    if (e.errors) {
        var message = "Errors:\n";
        $.each(e.errors, function (key, value) {
            if ('errors' in value) {
                $.each(value.errors, function () {
                    message += this + "\n";
                });
            }
        });
        alert(message);
    }
}
function CustomEdit(e) {
    e.preventDefault();

    var dataItem = this.dataItem($(e.currentTarget).closest("tr"));

}

提琴手數據：

控制器對網格1的讀取請求的響應：

{"Data":[{"MemberClub":{"ClubRegion":{"Id":0,"Code":"TE","Name":"Test"},"ClubStatus":       {"Id":0,"Name":"Unknown"},"RelationshipManager":{},"Id":1,"ClubName":"B     Club","RegistrationYear":2000,"StreetAddress1":"street","StreetAddress2":"a","City":"city","State":"state","ZipCode":11111,"PhoneNumber":"555-1212","Email":"a@a.com","URL":"www.w.w."},"MemberStatus":{"Id":2,"Name":"Active"},"Id":1,"MemberClubID":1,"MemberStatusID":2,"MembershipNumberRoot":1,"LastName":"last","FirstName":"Edited","StreetAddress1":"street","StreetAddress2":"a","City":"city","State":"state","ZipCode":"11111","PhoneNumber":"555-1212","Email":"a@a.com","RegistrationYear":2000},{"MemberClub":{"ClubRegion":{"Id":0,"Code":"TE","Name":"Test"},"ClubStatus":{"Id":0,"Name":"Unknown"},"RelationshipManager":{},"Id":1,"ClubName":"B Club","RegistrationYear":2000,"StreetAddress1":"street","StreetAddress2":"a","City":"city","State":"state","ZipCode":11111,"PhoneNumber":"555-1212","Email":"a@a.com","URL":"www.w.w."},"MemberStatus":{"Id":10,"Name":"New"},"Id":10,"MemberClubID":1,"MemberStatusID":10,"MembershipNumberRoot":null,"LastName":"1","FirstName":"1","StreetAddress1":"1","StreetAddress2":"1","City":null,"State":"1","ZipCode":"1","PhoneNumber":"1","Email":"1","RegistrationYear":1},{"MemberClub":{"ClubRegion":{"Id":0,"Code":"TE","Name":"Test"},"ClubStatus":{"Id":0,"Name":"Unknown"},"RelationshipManager":{},"Id":1,"ClubName":"B Club","RegistrationYear":2000,"StreetAddress1":"street","StreetAddress2":"a","City":"city","State":"state","ZipCode":11111,"PhoneNumber":"555-1212","Email":"a@a.com","URL":"www.w.w."},"MemberStatus":{"Id":10,"Name":"New"},"Id":11,"MemberClubID":1,"MemberStatusID":10,"MembershipNumberRoot":null,"LastName":"2","FirstName":"2","StreetAddress1":"2","StreetAddress2":"2","City":null,"State":"2","ZipCode":"2","PhoneNumber":"2","Email":"2","RegistrationYear":2}],"Total":3,"AggregateResults":null,"Errors":null}

控制器對網格2的讀取請求的響應：

{"Data":[{"MemberClub":{"RelationshipManager":{},"Id":2,"ClubName":"Test Club","RegistrationYear":2000,"StreetAddress1":"street","StreetAddress2":"a","City":"city","State":"state","ZipCode":11111,"PhoneNumber":"555-1212","Email":"a@a.com","URL":"www.w.w.","ClubRegion":{"Id":0,"Code":"TE","Name":"Test"},"ClubStatus":{"Id":0,"Name":"Unknown"}},"MemberStatus":{"Id":10,"Name":"New"},"Id":13,"MemberClubID":2,"MemberStatusID":10,"MembershipNumberRoot":2,"LastName":"Dude","FirstName":"Random","StreetAddress1":"street","StreetAddress2":"a","City":"City","State":"State","ZipCode":"11111","PhoneNumber":"555-1212","Email":"b@b.com","RegistrationYear":2012}],"Total":1,"AggregateResults":null,"Errors":null}

對網格3的響應

{“ Data”：[]，“ Total”：0，“ AggregateResults”：null，“ Errors”：null}

（哪個是對的）

在開始顯示多個網格之前，我只有一個網格，該網格使用從控制器傳遞的模型來包含數據。 那很好。 然后，我添加了動態網格創建（三個網格都使用了傳遞的模型），它們都顯示了所請求的最后一個模型數據，因此我從AJAX方法開始。

這個問題不是一個騙子。 之前曾提出過非常類似的問題，但是這些問題都沒有向控制器的read函數（正確填充）傳遞附加值，據我所知，我已經實現了在這些問題和劍道網站沒有成功。

這必須是從根本上來說是基本的東西。 有任何想法嗎？

謝謝！

Answer 1

嘗試從ActionMethod中刪除[AcceptVerbs(HttpVerbs.Post)]屬性

Answer 2

您可以將Kendo網格中的JSON數據發送到mvc控制器，您需要執行以下步驟

1. Stringfy Json數據並通過Ajax調用發送數據

2. 在控制器中接收數據作為列表

     var serviceUrl = '/Enrollment/EnrollCourse'; //Pass the items from the grid to the controll. Enroll a user for a course $.ajax({ type: "POST", url: serviceUrl, data: JSON.stringify($("#grid").data("kendoGrid").dataItems()), contentType: "application/json; charset=utf-8", dataType: "json" }).done(function (data, textStatus, request) { alert('success.'); $("#grid").data('kendoGrid').dataSource.data([]); }).fail(function (jqXHR, textStatus, errorThrown) { alert('Error.'); }); 

   [HttpPost] public ActionResult EnrollCourse（IEnumerable enrollments）{return Json（JsonRequestBehavior.AllowGet）; }

     Note: Do not try to corrupt JSON data as mentioned by Kendo UI admin data: JSON.stringify({ Technicians:("#Technicians").data("kendoMultiSelect").dataItems() }) 

Answer 3

嘗試在控制器操作方法中添加“ JsonRequestBehavior.AllowGet”。 無需添加“ [AcceptVerbs（HttpVerbs.Post）]”。

            public class MemberController : Controller
            {
                private MemberContext db = new MemberContext();                    
                public ActionResult Grid_Member_Read([DataSourceRequest] DataSourceRequest request,
                    int club_id)
                {
                    var results = from r in db.Members where r.MemberClub.Id == club_id select r;
                    return Json(results.ToDataSourceResult(request), JsonRequestBehavior.AllowGet);
                }
            }