MVC发布IPagedList

我有以下PagedListModel：MVC发布IPagedList

public class PagedClientViewModel 
{ 
    public int? Page { get; set; } 
    public PagedList.IPagedList<ClientViewModel> Clients { get; set; }    
} 

public class ClientViewModel 
{   
    public string ClientNumber { get; set; } 
    public bool UseThisClient{ get; set; } 
}

我的看法是这样的：

@using (Html.BeginForm("Index", "Home", FormMethod.Get, new { id = "Form" })) 
{ 
    @foreach (var item in Model.Clients) 
    { 
     @Html.DisplayFor(modelItem => item.ClientNumber) 
     @Html.CheckBoxFor(modelItem => item.UseThisClient) 
    }  

@Html.HiddenFor(model => model.Clients)    
}

控制器动作：

public ActionResult Index(PagedClientViewModel model) 
{ 
    //...process all clients in the list 
}

我要的型号后回控制器，以便我可以处理哪些复选框被打勾，但我得到以下错误：我有点明白了错误是因为我发布了一个界面，但我找不到解决办法。我怎样才能得到这份工作？

Cannot create an instance of an interface. at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at System.Activator.CreateInstance(Type type) at System.Web.Mvc.DefaultModelBinder.CreateModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Type modelType) at System.Web.Mvc.DefaultModelBinder.BindSimpleModel(ControllerContext controllerContext, ModelBindingContext bindingContext, ValueProviderResult valueProviderResult) at System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.DefaultModelBinder.GetPropertyValue(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor, IModelBinder propertyBinder)
at System.Web.Mvc.DefaultModelBinder.BindProperty(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor) at System.Web.Mvc.DefaultModelBinder.BindProperties(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.DefaultModelBinder.BindComplexElementalModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Object model)
at System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) 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.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)

来源

2013-01-10 woggles

有解决这个问题，我在我过去的项目已经使用的方式。但是，让我首先问你 - 你是否必须发布和接口类型而不是具体的类类型？ – Suhas

我想我必须张贴接口类型，当我填写的客户，我需要调用'model.Clients = clients.ToPagedList（PageIndex的，25）的列表;'返回的接口类型。我试图将'IPagedList '转换为'PagedList '，但没有成功。 – woggles

这到底是为我工作：http://stackoverflow.com/questions/14356152/pagedlistpager-pass-additional-model-data – woggles

解决此问题的方法是将页面元数据作为单独的属性传递，并在视图中重新构建IPagedList。像下面

public class PagedClientViewModel 
{ 
    public int? Page { get; set; } 
    public List<ClientViewModel> Clients { get; set; } 
    public IPagedList PagingMetaData { get; set; } 
}

gererating个元数据

pagedClientViewModel.PagingMetaData = new StaticPagedList<ClientViewModel>(pagedClientViewModel.Clients, pageIndex, pageSize, TotalClients).GetMetaData();

构建寻呼机在视图

<div style="text-align: center"> 
    @Html.PagedListPager(new StaticPagedList<ClientViewModel>(Model.Clients, Model.PagingMetaData), page => Url.Action("<actionname>", new { page }), PagedListRenderOptions.Classic) 
</div>

来源

2013-01-19 14:51:27 Praveen

MVC发布IPagedList

回答

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