KendoUI 그리드가 saveChanges 이벤트를 발생시키지 않습니다. (System.MissingMethodException : 인터페이스의 인스턴스를 만들 수 없습니다.)

Question

KendoUI 그리드가 SaveChanges 이벤트를 발생시키지 않습니다. 프로젝트를 실행하고 SaveChanges 버튼을 클릭했지만 SaveChanges 이벤트가 실행되지 않는 경우 Visual Studio 2013 환경 및 브라우저 (FF, IE, Chrome)에서 어떤 문제도 보지 못했습니다. 추가 조사를 위해 Chrome 디버거를 사용하여 문제가 발생했습니다. 문제, 오류 로그 및 코드 그림을 참조하십시오. (저는 JQuery v1.10을 사용했습니다) 제발 도와주세요.

EDITED는 :

은 그 에러가 그것을 제거 .When [Bind(Prefix = "models")] 관련있다Editing_Update 조치가 실행되지만 articles 객체가 널 (null) 이해 될. 어떻게 해결할 수 있습니까?

Server Error in '/' Application. 

Cannot create an instance of an interface. 

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.MissingMethodException: Cannot create an instance of an interface. 

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. 

Stack Trace: 

[MissingMethodException: Cannot create an instance of an interface.] System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0 System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) +113 System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) +232 System.Activator.CreateInstance(Type type, Boolean nonPublic) +83 System.Activator.CreateInstance(Type type) +66 System.Web.Mvc.DefaultModelBinder.CreateModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Type modelType) +460 System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +1137 System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +633 System.Web.Mvc.DefaultModelBinder.UpdateCollection(ControllerContext controllerContext, ModelBindingContext bindingContext, Type elementType) +555 System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +2486 System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +633 System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor) +495 System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext, ActionDescriptor actionDescriptor) +199 System.Web.Mvc.Async.<>c__DisplayClass1e.<BeginInvokeAction>b__16(AsyncCallback asyncCallback, Object asyncState) +1680 System.Web.Mvc.Async.WrappedAsyncResult`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +59 System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +151 System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object state, BeginInvokeDelegate beginDelegate, EndInvokeDelegate`1 endDelegate, Object tag, Int32 timeout) +94 System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +525 System.Web.Mvc.Controller.<BeginExecuteCore>b__1c(AsyncCallback asyncCallback, Object asyncState, ExecuteCoreState innerState) +82 System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +73 System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +151 System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object callbackState, BeginInvokeDelegate`1 beginDelegate, EndInvokeVoidDelegate`1 endDelegate, TState invokeState, Object tag, Int32 timeout, SynchronizationContext callbackSyncContext) +105 System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +595 System.Web.Mvc.Controller.<BeginExecute>b__14(AsyncCallback asyncCallback, Object callbackState, Controller controller) +47 System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +65 System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +151 System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object callbackState, BeginInvokeDelegate`1 beginDelegate, EndInvokeVoidDelegate`1 endDelegate, TState invokeState, Object tag, Int32 timeout, SynchronizationContext callbackSyncContext) +139 System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +484 System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +50 System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__3(AsyncCallback asyncCallback, Object asyncState, ProcessRequestState innerState) +98 System.Web.Mvc.Async.WrappedAsyncVoid`1.CallBeginDelegate(AsyncCallback callback, Object callbackState) +73 System.Web.Mvc.Async.WrappedAsyncResultBase`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +151 System.Web.Mvc.Async.AsyncResultWrapper.Begin(AsyncCallback callback, Object callbackState, BeginInvokeDelegate`1 beginDelegate, EndInvokeVoidDelegate`1 endDelegate, TState invokeState, Object tag, Int32 timeout, SynchronizationContext callbackSyncContext) +106 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +446 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +88 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +50 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +301 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 

내 컨트롤러의 일부 : 나는 SaveChanges를 버튼을 클릭하면 위의 코드에 따르면

[Authorize(Roles = "Administrator")] 
    public class ArticleAdminController : MVCController 
    { 
    private JahanBlogDbContext db = DataContextFactory.GetDataContext(); 
    private readonly IArticleRepository _articleAdminRepository; 
    public ArticleAdminController(IArticleRepository articleRepository) 
    { 
     _articleAdminRepository = articleRepository; 
    } 

    public ArticleAdminController() 
     : this(new ArticleRepository()) 
    { 
    } 

    // GET: ArticleAdmin 
    public ActionResult Index([DataSourceRequest] DataSourceRequest request) 
    { 
     IEnumerable<ArticleViewModel> instance = new ArticleViewModel().FindByCriteria(); 
     return View(instance); 
    } 

    public ActionResult Editing_Read([DataSourceRequest] DataSourceRequest request) 
    { 
     List<ArticleViewModel> instance = new ArticleViewModel().FindByCriteria().ToList(); 
     DataSourceResult dsRequest = instance.ToDataSourceResult(request); 
     return Json(dsRequest, JsonRequestBehavior.AllowGet); 
    } 

    [AcceptVerbs(HttpVerbs.Post)] 
    public ActionResult Editing_Update([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<ArticleViewModel> articles) 
    { 
     if (articles != null && ModelState.IsValid) 
     { 
      using (new EFUnitOfWorkFactory().Create()) 
      { 
       foreach (ArticleViewModel articleViewModel in articles) 
       { 
        var art = new Article 
        { 
         Id = articleViewModel.Id, 
         IsActive = articleViewModel.IsActive, 
         IsActiveNewComment = articleViewModel.IsActiveNewComment, 
         Title = articleViewModel.Title, 
        }; 
        _articleAdminRepository.Update(art); 
       } 
      } 
     } 
     DataSourceResult result = articles.ToDataSourceResult(request, ModelState); 
     return Json(result); 

    } 
    // .... 
    } 

, Editing_Update 화재해야하지만, 일어나지 않았다 !!

내 그리드 :

@using Jahan.Blog.ViewModel 
@using Kendo.Mvc.UI 
@using Jahan.Blog.Web.Mvc.HtmlHelpers 
@using Kendo.Mvc.UI.Fluent 
@model IEnumerable<ArticleViewModel> 
@{ 
    ViewBag.Title = "Index"; 
} 

<h2>Index</h2> 

<p> 
    @Html.ActionLink("Create New", "Create") 
</p> 
<div style="width: 100%;"> 
    @(Html.Kendo().Grid<Jahan.Blog.ViewModel.ArticleViewModel>() 
      .Name("ArticleAdmin").Navigatable() 
      .Resizable(c => c.Columns(true)) 
      .HtmlAttributes(new { @class = "cursorLink", @style = "width: 1600px;height:auto;overflow: scroll;" }) 
      .Columns(columns => 
      { 
       columns.Template(x => { }).ClientTemplate("<a href='" + Url.Action("Details", "ArticleAdmin") + "/#=Id#'>Details</a>").Width(60); 
       columns.Bound(p => p.Id).Title("Article Id").Width(75); 
       columns.Bound(p => p.Owner).Title("Writer").Width(70); 
       columns.Bound(p => p.Title).Width(200); 
       columns.Bound(p => p.IsActive).Encoded(false).ClientTemplate("<img src='/Content/#= IsActive ? 'tick.png' : 'cross.png' #''>").Width(80); 
       columns.Bound(p => p.IsActiveNewComment).Encoded(false).ClientTemplate("#= showActivationStatusIcon(IsActiveNewComment) #").Width(170); 
       columns.Bound(p => p.Tags).ClientTemplate("#= ShowTagsInGridView(Tags) #").Width(200); 
       columns.Bound(p => p.NumberOfComments).Title("No. Comments").Width(115); 
       columns.Bound(p => p.LikeCounter).Title("No. Like").Width(70); 
       columns.Bound(p => p.RateCounter).Title("Rate").Width(60); 
       columns.Bound(p => p.CreatedDate).Format("{0:G}").Width(160); 
       columns.Bound(p => p.ModifiedDate).Format("{0:G}").Width(160); 
       columns.Command(command => command.Destroy()).Width(170); 
      }) 
      .ToolBar(toolbar => 
      { 
       toolbar.Create(); 
       toolbar.Save(); 
      }) 
      .Editable(editable => editable.Mode(GridEditMode.InCell)) 
      .Pageable() 
      .Navigatable() 
      .Sortable() 
      .Scrollable() 
      .DataSource(dataSource => dataSource 
       .Ajax() 
       .Batch(true) 
       .PageSize(10) 
       .ServerOperation(false) 
       .Events(events => events.Error("error_handler")) 
       .Model(model => 
       { 
        model.Id(p => p.Id); 
        model.Field(p => p.Id).Editable(false); 
        model.Field(p => p.Tags).Editable(false); 
        model.Field(p => p.Owner).Editable(false); 
        model.Field(p => p.LikeCounter).Editable(false); 
        model.Field(p => p.RateCounter).Editable(false); 
        model.Field(p => p.CreatedDate).Editable(false); 
        model.Field(p => p.ModifiedDate).Editable(false); 
       }) 
       .Create("Editing_Create", "ArticleAdmin") 
       .Read(read => read.Action("Editing_Read", "ArticleAdmin")) 
       .Update(update => update.Action("Editing_Update", "ArticleAdmin")) 
       .Destroy(delete => delete.Action("Editing_Destroy", "ArticleAdmin")) 
     )) 
</div> 

<script type="text/javascript"> 

    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); 
     } 
    } 

</script> 

내 ViewModel을 : 당신이 명확하게 제공 한 사진에서 모든

namespace Jahan.Blog.ViewModel 
{ 
    public class ArticleViewModel : IArticleViewModel 
    { 
    public ArticleViewModel() 
    { 

    } 
    public virtual int Id { get; set; } 
    public virtual int? UserId { get; set; } 

    public virtual string Title { get; set; } 

    public virtual string Summary { get; set; } 

    public virtual string Description { get; set; } 

    public virtual decimal? RateCounter { get; set; } 

    public virtual int? LikeCounter { get; set; } 

    public virtual bool IsActive { get; set; } 

    public virtual bool IsActiveNewComment { get; set; } 

    public virtual IList<Comment> Comments { get; set; } 

    public virtual ISet<Rating> Ratings { get; set; } 

    public virtual IList<AttachmentFile> AttachmentFiles { get; set; } 

    public virtual IList<ArticleTag> ArticleTags { get; set; } 

    public virtual ISet<ArticleLike> ArticleLikes { get; set; } 

    public virtual DateTime? CreatedDate { get; set; } 

    public virtual DateTime? ModifiedDate { get; set; } 

    //[UIHint("_TagsOfArticle")] 
    public List<TagGridViewModel> Tags { get; set; } 
    public virtual int NumberOfComments { get; set; } 

    public virtual string Owner { get; set; } 

    private IQueryable<ArticleViewModel> QueryBuilder() 
    { 
     ArticleRepository repository = new ArticleRepository(); 
     IQueryable<ArticleViewModel> query = repository.FindAll().Select(article => new ArticleViewModel 
     { 
      Id = article.Id, 
      //AttachmentFiles = article.AttachmentFiles.Where(a => a.ArticleId == article.Id).Distinct().ToList(), 
      //Comments = article.Comments.Where(c => c.ArticleId == article.Id).ToList(), 
      CreatedDate = article.CreatedDate, 
      Description = article.Description, 
      IsActive = article.IsActive, 
      IsActiveNewComment = article.IsActiveNewComment, 
      LikeCounter = article.LikeCounter, 
      ModifiedDate = article.ModifiedDate, 
      NumberOfComments = article.Comments.Count(c => c.ArticleId == article.Id), 
      RateCounter = article.RateCounter, 
      Summary = article.Summary, 
      Title = article.Title, 
      UserId = article.UserId, 
     }); 
     return query; 
    } 

    public virtual IQueryable<ArticleViewModel> QueryBuilderByCriteria(Expression<Func<ArticleViewModel, bool>> predicate = null, params Expression<Func<ArticleViewModel, object>>[] includeProperties) 
    { 
     IQueryable<ArticleViewModel> items = QueryBuilder(); 
     if (includeProperties != null) 
     { 
      foreach (Expression<Func<ArticleViewModel, object>> includeProperty in includeProperties) 
      { 
       items = items.Include(includeProperty); 
      } 
     } 
     if (predicate != null) 
      return items.Where(predicate); 
     return items; 
    } 

    public virtual IEnumerable<ArticleViewModel> FindByCriteria(Expression<Func<ArticleViewModel, bool>> predicate = null, params Expression<Func<ArticleViewModel, object>>[] includeProperties) 
    { 
     List<ArticleViewModel> result = new List<ArticleViewModel>(); 
     var query = QueryBuilderByCriteria(predicate, includeProperties); 
     foreach (var articleViewModel in query) 
     { 
      articleViewModel.Tags = TagGridViewModel.GetByArticleId(articleViewModel.Id); 
      articleViewModel.Owner = AppUserStore.Instance.FindByIdAsync(int.Parse(articleViewModel.UserId.ToString())).Result.UserName; 
      result.Add(articleViewModel); 
     } 
     return result; 
    } 

    public virtual ArticleViewModel FindByArticleId(int articleId) 
    { 
     ArticleViewModel result = QueryBuilder().FirstOrDefault(a => a.Id == articleId); 
     return result; 
    } 
} 
} 

Answer 1

맞춤형 모델 바인더를 만들었습니다.

public class ArticleViewModelBinder : BaseModelBinder<ArticleViewModel> 
{ 
} 

BaseModelBinder 클래스 :

public class BaseModelBinder<TModel> : IModelBinder where TModel : class, new() 
    { 
     public virtual object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) 
     { 
      TModel model = (TModel)bindingContext.Model ?? new TModel(); 
      ICollection<string> propertyNames = bindingContext.PropertyMetadata.Keys; 
      foreach (var propertyName in propertyNames) 
      { 
       var value = GetValue(bindingContext, propertyName); 
       model.SetPropertyValue(propertyName, value); 
      } 
      return model; 
     } 

     private string GetValue(ModelBindingContext context, string name) 
     { 
      name = (context.ModelName == "" ? "" : context.ModelName + ".") + name; 

      ValueProviderResult result = context.ValueProvider.GetValue(name); 
      if (result == null || result.AttemptedValue == "") 
      { 
       return "<Not Specified>"; 
      } 
      else 
      { 
       return (string)result.AttemptedValue; 
      } 
     } 
    } 

도우미 클래스 : 헬퍼 클래스에서 , 나는 FastMember을 사용했습니다.

public static class Miscellaneous 
    { 
     public static void SetPropertyValue(this object obj, string property, object value, bool usingByFastMember = true) 
     { 
      switch (usingByFastMember) 
      { 
       case true: 
        var wrapped = ObjectAccessor.Create(obj); 
        var properyType = obj.GetType().GetProperty(property).PropertyType; 
        var val = ChangeType(value, properyType);//Convert.ChangeType(value, properyType); 
        wrapped[property] = val; 
        break; 
       case false: 
        PropertyInfo prop = obj.GetType().GetProperty(property, BindingFlags.Public | BindingFlags.Instance); 
        if (prop != null && prop.CanWrite) 
        { 
         prop.SetValue(obj, value, null); 
        } 
        break; 
      } 
     } 

     public static object ChangeType(object value, Type conversion) 
     { 
      object result = null; 
      var t = conversion; 

      if (t.IsGenericType && t.GetGenericTypeDefinition().Equals(typeof(Nullable<>))) 
      { 
       if (value == null) 
       { 
        return null; 
       } 
       t = Nullable.GetUnderlyingType(t); ; 
      } 
      try 
      { 
       result = Convert.ChangeType(value, t); 
      } 
      catch (Exception) 
      { 
       return null; 
      } 
      return result; 
     } 
    } 

Answer 2

먼저 변경 사항 저장이 Editing_Update 방법을 발사한다는 것을 보여줍니다. 코드 500 만 나오면 서버가 데이터 처리를 진행하는 동안 예외가 발생합니다. 내 조언은 Editing_Update 메서드의 첫 번째 코드 줄에 중단 점을 넣고 트리거 할 항목을 찾을 때까지 F10 키를 누릅니다. 행운을 빌어 요.