关于模型验证的 rtm 位发生了一些变化。
我有一个简单的 View 模型,看起来像
public class ProductViewModel
{
[Required]
[DataMember(IsRequired = true)]
public int ProductTypeId { get; set; }
public string Product { get; set; }
}
(我刚刚添加了 DataMember(IsRequired = true) 作为我收到的错误消息说使用它来解决问题。但是没有乐趣)
在我的 Controller 中,模型状态告诉我模型是有效的,但是当我尝试使用 RestSharp 将模型传递给我的 api 时,我收到以下错误。
{"Message":"An error has occurred.","ExceptionMessage":"Property 'ProductTypeId' on type 'Mine.Model.Model' is invalid. Value-typed properties marked as [Required] must also be marked with [DataMember(IsRequired=true)] to be recognized as required. Consider attributing the declaring type with [DataContract] and the property with [DataMember(IsRequired=true)].","ExceptionType":"System.InvalidOperationException","StackTrace":" at System.Web.Http.Validation.Validators.ErrorModelValidator.Validate(ModelMetadata metadata, Object container)\r\n at System.Web.Http.Validation.DefaultBodyModelValidator.ShallowValidate(ModelMetadata metadata, ValidationContext validationContext, Object container)\r\n at System.Web.Http.Validation.DefaultBodyModelValidator.ValidateNodeAndChildren(ModelMetadata metadata, ValidationContext validationContext, Object container)\r\n at System.Web.Http.Validation.DefaultBodyModelValidator.ValidateProperties(ModelMetadata metadata, ValidationContext validationContext)\r\n at System.Web.Http.Validation.DefaultBodyModelValidator.ValidateNodeAndChildren(ModelMetadata metadata, ValidationContext validationContext, Object container)\r\n at System.Web.Http.Validation.DefaultBodyModelValidator.Validate(Object model, Type type, ModelMetadataProvider metadataProvider, HttpActionContext actionContext, String keyPrefix)\r\n at System.Web.Http.ModelBinding.FormatterParameterBinding.<>c_DisplayClass1.b_0(Object model)\r\n at System.Threading.Tasks.TaskHelpersExtensions.<>c__DisplayClass36
1.<>c__DisplayClass38.<Then>b__35()\r\n at System.Threading.Tasks.TaskHelpersExtensions.<>c__DisplayClass49.<ToAsyncVoidTask>b__48()\r\n at System.Threading.Tasks.TaskHelpers.RunSynchronously[TResult](Func
1 func, CancellationToken cancellationToken)"}
我的 rc 位没有这个问题,但后来我才开始使用带有 rtm 位的 restsharp 库。
任何帮助都会很棒。
最佳答案
除了将 [DataMember(IsRequired = true)] 添加到属性之外,您还需要确保在类级别应用属性 [DataContract]。
关于validation - Mvc4 RTM 验证抛出错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12234582/