这确实是一个基本问题,可能会重复。谁能告诉我.Net中任何程序生成的错误信息的有用性。
今天,我收到了一个错误消息“发现歧义匹配”。在将实体保存在数据库中(使用EF4)时,我无法弄清楚为什么会出现此错误,根本原因是什么。附件是相同的按扣。
这是完整的错误详细信息,
System.Reflection.AmbiguousMatchException was unhandled by user code
Message=Ambiguous match found.
Source=mscorlib
StackTrace:
at System.RuntimeType.GetPropertyImpl(String name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers)
at System.Type.GetProperty(String name)
at IAA.Data.EntityFramework.RepositoryWithTypedId`2.SaveOrUpdate[T](T entity)
at ABC.XYZ.ApplicationServices.AcknowledgementManagementService.SaveOrUpdate(AcknowledgementFormViewModel acknowledgementFormViewModel) in E:\RA\ABC.XYZ\app\ABC.XYZ.ApplicationServices\AcknowledgementManagementService.cs:line 123
at ABC.XYZ.Web.Controllers.AcknowledgementsController.Acknowledgements(AcknowledgementFormViewModel acknowledgementFormViewModel) in E:\RA\ABC.XYZ\app\ABC.XYZ.Web.Controllers\AcknowledgementsController.cs:line 68
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
Run Code Online (Sandbox Code Playgroud)
InnerException:
这意味着System.Reflection.AmbiguousMatchException抛出了一个,并且未对其进行处理。它被扔到System.RuntimeType.GetPropertyImpl(String name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers),从System.Type.GetProperty(String name)调用,从IAA.Data.EntityFramework.RepositoryWithTypedId2.SaveOrUpdate [T](T entity)` 调用,
等等
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