索引超出范围数据绑定
尝试将数据表绑定到Telerik Kendo网格时出现以下错误:
指数超出范围。 必须是非负数且小于集合的大小。
我遵循Telerik的示例项目,但在我的代码中,它似乎失败了'DataSource'的'Read'功能:
.Read(read => read.Action(“Read”,“Events”))
我有ActionResult Read()当前返回null,仅仅是因为我想知道它是否可以实现该功能。 另外,我已经介绍过了,数据表返回正确的列和列名称。
任何帮助表示赞赏。
Events.cshtml
@model System.Data.DataTable
@{
ViewBag.Title = "Events";
Layout = "~/Views/_mainLayout.cshtml";
}
<p>Events</p>
@(Html.Kendo().Grid(Model)
.Name("GridStatic")
.Columns(columns =>
{
columns.Bound("ID");
columns.Bound("EntryType");
columns.Bound("EventDate");
columns.Bound("EventData");
columns.Bound("Source");
})
.Pageable()
.Sortable()
.Scrollable()
.Filterable()
.DataSource(dataSource => dataSource
.Ajax()
.Model(model =>
{
model.Field("ID", typeof(int));
model.Field("EntryType", typeof(DateTime));
model.Field("EventDate", typeof(string));
model.Field("EventData", typeof(string));
model.Field("Source", typeof(string));
})
.Read(read => read.Action("Read", "Events"))
)
)
EventsController.cs
public class EventsController : Controller
{
//
// GET: /Events/
public ActionResult Events(string sName)
{
EventReader ereader = new EventReader(sName);
return View(ereader.ParseIntoTable(ereader.GetListOfEvents()));
}
public ActionResult Read([DataSourceRequest] DataSourceRequest request)
{
return null;
}
}
更新::
这里是堆栈跟踪,我不确定这是否有帮助。
[ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index] System.ThrowHelper.ThrowArgumentOutOfRangeException() +72 System.Collections.ObjectModel.Collection`1.set_Item(Int32 index, T value) +10451574 System.Web.Mvc.ControllerContext.get_RequestContext() +25 Kendo.Mvc.UI.NavigatableExtensions.GenerateUrl(INavigatable navigatable, ViewContext viewContext, IUrlGenerator urlGenerator) +52 Kendo.Mvc.UI.Fluent.CrudOperationBuilder.SetUrl() +81 Kendo.Mvc.UI.Fluent.CrudOperationBuilder.Action(String actionName, String controllerName, Object routeValues) +66 Kendo.Mvc.UI.Fluent.CrudOperationBuilder.Action(String actionName, String controllerName) +47 ASP._Page_Views_Events_Events_cshtml.b__3(CrudOperationBuilder read) in c:UserswsharpDocumentsVisual Studio 2010ProjectsInvisoInvisoViewsEventsEvents.cshtml:40 Kendo.Mvc.UI.Fluent.AjaxDataSourceBuilderBase`2.Read(Action`1 configurator) +131 ASP._Page_Views_Events_Events_cshtml.b__2(DataSourceBuilder`1 dataSource) in c:UserswsharpDocumentsVisual Studio 2010ProjectsInvisoInvisoViewsEventsEvents.cshtml:30 Kendo.Mvc.UI.Fluent.GridBuilder`1.DataSource(Action`1 configurator) +212 ASP._Page_Views_Events_Events_cshtml.Execute() in c:UserswsharpDocumentsVisual Studio 2010ProjectsInvisoInvisoViewsEventsEvents.cshtml:16 System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +197 System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +97 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +76 System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) +260 System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) +115 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +295 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +13 System.Web.Mvc.c__DisplayClass1a.b__17() +23 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +242 System.Web.Mvc.c__DisplayClass1c.b__19() +21 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +177 System.Web.Mvc.Async.c__DisplayClass2a.b__20() +89 System.Web.Mvc.Async.c__DisplayClass25.b__22(IAsyncResult asyncResult) +102 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +57 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +43 System.Web.Mvc.c__DisplayClass1d.b__18(IAsyncResult asyncResult) +14 System.Web.Mvc.Async.c__DisplayClass4.b__3(IAsyncResult ar) +23 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62 System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +57 System.Web.Mvc.Async.c__DisplayClass4.b__3(IAsyncResult ar) +23 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62 System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +47 System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10 System.Web.Mvc.c__DisplayClass8.b__3(IAsyncResult asyncResult) +25 System.Web.Mvc.Async.c__DisplayClass4.b__3(IAsyncResult ar) +23 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +47 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9629296 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
原来它与我的web.config有关。 我遇到了我创建的每个Kendo对象的错误。 将以下代码添加到顶层web.config似乎修复了一切。
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
通过在解决方案的web.config文件中包含部分将对您有所帮助。
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
我会推测出现错误,因为Read
操作没有返回有效的结果集。
通常Kendo网格需要在Ajax模式下读取时返回JsonResult
。 如果你返回一个空的DataTable
格式为json结果,那么我怀疑它会修复它。
public ActionResult Read([DataSourceRequest] DataSourceRequest request)
{
return this.Json(new DataTable().ToDataSourceResult(request));
}
显然你应该用DataTable
替换你的真实结果集。
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