Discussion :

[jmclej]

Bonjour,
J'ai le code suivant :

Code :

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Mon index.cshtml :
@using MasterManyGridViewMultipleFieldsKeyRazorMvc4.Models
@model List<Master>
<script type="text/javascript">
    $(function () {
    debugger;
        LoadingPanel.Show();
        $.ajax({
            type: "POST",
            url: '@Url.Action("IndexPartial")',
            data: @(Html.Raw(Json.Encode(Model))),
//data: @(Html.Raw(new System.Web.Script.Serialization.JavaScriptSerializer().Serialize(Json.Encode(Model)))),
            datatype: 'json',
            contentType:"application/json; charset=utf-8",
            success: function (response) {
                $("#Container").html(response);
                LoadingPanel.Hide();
            }
        });
    });
</script>
 
 
My IndexPartialView.cshtml :
@model System.Collections.IEnumerable
<br />
use of "Model"
 
 
My HomeController.cs :
public class HomeController : Controller
    {
        public ActionResult Index()
        {
            //In my real project, I do some checks to allow the connection or not
            if (true)
                Session["Rights"] = "OK";
            else
                return new EmptyResult();
 
            return View("Index", DataProvider.GetMasters());
        }
 
        //public ActionResult IndexPartial(List<Master> m)
        [HttpPost]//[HttpGet]
        public ActionResult IndexPartial(string m)
        //public ActionResult IndexPartial()
        {
            var viewModel = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<List<Master>>(m);
            //var viewModel = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<List<Master>>(Request.QueryString[0]);
 
            return PartialView("IndexPartialView", /*m*/viewModel);
        }
}
 
My DataProvider.cs :
public static IEnumerable GetMasters()
        {
            List<Master> list = new List<Master>();
            list.Add(new Master("Nancy", "Davolio", 20, "Felipe"));
            list.Add(new Master("Andrew", "Fuller", 30, "Don"));
            return list;
        }
 
[Serializable]
public class Master
    {
        string _firstName, _secondName, _fourthName;
        int _age;
 
        public Master()
        {
        }
        public Master(string first, string second, int age, string fourth)
        {
            this._firstName = first;
            this._secondName = second;
            this._age = age;
            this._fourthName = fourth;
        }
 
        public string FirstName
        {
            get { return _firstName; }
            set { _firstName = value; }
        }
 
        public string SecondName
        {
            get { return _secondName; }
            set { _secondName = value; }
        }
 
        public int Age
        {
            get { return _age; }
            set { _age = value; }
        }
 
        public string FourthName
        {
            get { return _fourthName; }
            set { _fourthName = value; }
        }
    }

Quand je regarde dans firebug au niveau de mon script, j'ai le contenu de data qui est :

[{"FirstName":"Nancy","SecondName":"Davolio","Age":20,"FourthName":"Felipe"},{"FirstName":"Andrew","SecondName":"Fuller","Age":30,"FourthName":"Don"}

Mais quand j'arrive dans mon action j'ai une exception qui est levée:

at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)
at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)
at System.Web.Script.Serialization.JavaScriptSerializer.DeserializeObject(String input)
at System.Web.Mvc.JsonValueProviderFactory.GetDeserializedObject(ControllerContext controllerContext)
at System.Web.Mvc.JsonValueProviderFactory.GetValueProvider(ControllerContext controllerContext)
at System.Web.Mvc.ValueProviderFactoryCollection.<>c__DisplayClassc.<GetValueProvider>b__7(ValueProviderFactory factory)
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at System.Web.Mvc.ValueProviderFactoryCollection.GetValueProvider(ControllerContext controllerContext)
at System.Web.Mvc.ControllerBase.get_ValueProvider()
at System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor)
at System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext, ActionDescriptor actionDescriptor)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<BeginInvokeAction>b__1e(AsyncCallback asyncCallback, Object asyncState)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state)
at System.Web.Mvc.Controller.<>c__DisplayClass1d.<BeginExecuteCore>b__17(AsyncCallback asyncCallback, Object asyncState)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout)
at System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout)
at System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state)
at System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__2(AsyncCallback asyncCallback, Object asyncState)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout)
at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state)
at System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state)
at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Quand j'essaye de mettre GET au lieu de POST dans le type de l'appel ajax, que je change [HttpPost] en [HttpGet], que je change la définition de la method de l'action en "public ActionResult IndexPartial()", alors j'ai Request.QueryString[0] qui vaut {undefined=undefined&undefined=undefined}... Si je continue l'execution de "var viewModel = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<List<Master>>(Request.QueryString[0]);", j'obtiens quasiement la même stacktrace, sauf que ça m'indique que l'erreur se situe au niveau de l'appel à à la méthode Derialize.
Est-ce qeu vous pouvez me dire quel doit être la bonne syntaxe de mon appel ajax et de mon action mvc s'il vous plaît ?

[jmclej]

J'ai essayé de simplifier mon problème en passant seulement un objet, cela fonctionne de la manière suivante:

Code :

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@model MasterManyGridViewMultipleFieldsKeyRazorMvc4.Models.Master
<script type="text/javascript">
    $(function () {
    var m = {
        FirstName: "@Model.FirstName",
        SecondName: "@Model.SecondName",
        FourthName: "@Model.FourthName",
        Age: @Model.Age};
 
        $.ajax({
            type: "POST",
            url: '@Url.Action("IndexPartial")',
            data: JSON.stringify(m),
            datatype: 'json',
            contentType:"application/json; charset=utf-8",
            success: function (response) {
                $("#Container").html(response);
            }
        });
    });
</script>
 
[HttpPost]
public ActionResult IndexPartial(Master m)
{
    return PartialView("IndexPartialView", m);
}

Du coup j'ai vu qu'il fallait passer un array, mais là je bloque, quelle est la syntaxe en javascript pour boucler sur ma liste de Master et créer un array qui contiendrait chacun des Master de la liste?