OData v4是否不支持Nullable< DateTime&gt ;?

问题描述

"/"应用程序中的服务器错误.

堆栈跟踪:

[HttpException(0x80004005):类型 'System.Nullable`1 [[System.DateTime，mscorlib，Version = 4.0.0.0， 文化=中立，PublicKeyToken = b77a5c561934e089]]' "WebAPIOData.Models.Categoria"类型中的"DataAlteracaoDate"不是 受支持的类型.参数名称:navigationProperty]
System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext 上下文，HttpApplication应用)+9936761
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext，HttpContext上下文，MethodInfo []处理程序)+118
System.Web.HttpApplication.InitSpecial(HttpApplicationState状态， MethodInfo []处理程序，IntPtr appContext，HttpContext上下文)+172
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext，HttpContext上下文)+336
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)+296

[HttpException (0x80004005): The type 'System.Nullable`1[[System.DateTime, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' of property 'DataAlteracaoDate' in the 'WebAPIOData.Models.Categoria' type is not a supported type. Parameter name: navigationProperty]
System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +9936761
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +118
System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +172
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +336
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +296

[HttpException(0x80004005):类型 'System.Nullable`1 [[System.DateTime，mscorlib，Version = 4.0.0.0， 文化=中立，PublicKeyToken = b77a5c561934e089]]' "WebAPIOData.Models.Categoria"类型中的"DataAlteracaoDate"不是 受支持的类型.参数名称:navigationProperty]
System.Web.HttpRuntime.FirstRequestInit(HttpContext上下文)+9915300 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext上下文) +101 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr，HttpContext上下文)+254

[HttpException (0x80004005): The type 'System.Nullable`1[[System.DateTime, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' of property 'DataAlteracaoDate' in the 'WebAPIOData.Models.Categoria' type is not a supported type. Parameter name: navigationProperty]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9915300 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +101 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +254

我的班级具有类型为 Nullable<DateTime>

My class has a property "DataAlteracaoDate" of type Nullable<DateTime>

我通过这种方式在ODataModelBuilder上设置实体:

I'm setting the entity on ODataModelBuilder on this way:

builder.EntitySet<Categoria>("Categorias").EntityType.HasKey(t => t.IdCategoria);

我在我的应用中使用的是Prerelease Microsoft.AspNet.OData.5.2.0-rc-140512的最新版本.

I'm using the lasted version for Prerelease Microsoft.AspNet.OData.5.2.0-rc-140512 in my app.

有人有什么建议吗?

推荐答案

DateTime.它支持DateTimeOffset，可以为null或不为null.

DateTime is no longer supported in OData v4. What it supports is DateTimeOffset, either nullable or not.

这篇关于OData v4是否不支持Nullable< DateTime&gt ;?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！