[ArgumentException: The parameters dictionary contains a null entry for parameter 'PosID' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult jobpage(Int32, Int32)' in 'MvcHome.Controllers.JobController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
参数名: parameters]
System.Web.Mvc.ActionDescriptor.ExtractParameterFromDictionary(ParameterInfo parameterInfo, IDictionary`2 parameters, MethodInfo methodInfo) +430
System.Linq.WhereSelectArrayIterator`2.MoveNext() +78
System.Linq.Buffer`1..ctor(IEnumerable`1 source) +152
System.Linq.Enumerable.ToArray(IEnumerable`1 source) +91
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +181
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +80
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +454
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +454
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +658
System.Web.Mvc.Controller.ExecuteCore() +143
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +91
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +57
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +25
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +60
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +602
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128
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