我试图加载用户的数据编辑它，然后保存。这已经工作，我不太确定我改变了，但现在我得到以下错误…
Value cannot be null.
Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: value
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[ArgumentNullException: Value cannot be null.
Parameter name: value]
System.ComponentModel.DataAnnotations.ValidationContext.set_DisplayName(String value) +51903
System.Web.Mvc.<Validate>d__1.MoveNext() +135
System.Web.Mvc.<Validate>d__5.MoveNext() +318
System.Web.Mvc.DefaultModelBinder.OnModelUpdated(ControllerContext controllerContext,ModelBindingContext bindingContext) +139
System.Web.Mvc.DefaultModelBinder.BindComplexElementalModel(ControllerContext controllerContext,ModelBindingContext bindingContext,Object model) +66
System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext,ModelBindingContext bindingContext) +1367
System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext,ModelBindingContext bindingContext) +449
System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext,ParameterDescriptor parameterDescriptor) +317
System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext,ActionDescriptor actionDescriptor) +117
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext,String actionName) +343
System.Web.Mvc.Controller.ExecuteCore() +116
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +37
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +50
System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8897857
System.Web.HttpApplication.ExecuteStep(IExecutionStep step,Boolean& completedSynchronously) +184
public ActionResult EditDetails()
{
int id = Convert.ToInt32(Session["user"]);
S1_Customers u1_users = storeDB.S1_Customers.Find(id);
return View(u1_users);
}
[HttpPost]
public ActionResult EditDetails(S1_Customers u1_users)
{
var Pcode = "";
if (ModelState.IsValid)
{
我甚至没有达到ModelState.IsValid当我点击提交
