首先我對MVC 3方法很陌生,所以請不要對我很難。我嘗試使用模型綁定,以及具有另一個模型列表的模型。此模型的屬性成功綁定,但列表不。模型綁定不適用於我 - MVC 3
這裏是類:
public class Company
{
public int Id { get; set; }
public String Name { get; set; }
public List<Address> Addresses { get; set; }
}
public class Address
{
public int Id { get; set; }
public String Street { get; set; }
}
這是我的模型:
public class CompanyDetailsModel
{
public Classes.Company Company { get; set; }
public List<Address> Addressess { get; set; }
}
我控制器(GET)
public ActionResult Create()
{
var model = new CompanyDetailsModel();
model.Addressess = new List<Address>();
//Just for this example like this
model.Addressess.Add(new Address());
model.Addressess.Add(new Address());
return View(model);
}
我控制器(POST)
[HttpPost]
public ActionResult Create(CompanyDetailsModel CompanyDetailsModel)
{
foreach (var address in CompanyDetailsModel.Addressess)
{
//logic
}
return View();
}
檢視:
(當然也導入的模型)
形式內:
foreach (var address in Model.Addressess) { <fieldset> <legend>Test</legend> @Html.EditorFor(model => address.Street) </fieldset> }
錯誤: [NullReferenceException異常:對象沒有設置的一個實例對象。]
額外信息:我可以保存公司的所有屬性,沒有任何問題,使用山姆e CompanyDetailsModel。
我希望有人能幫助我/指引我走向正確的方向。
在此先感謝
木橋
堆棧跟蹤
Line 45: public ActionResult Create(CompanyDetailsModel CompanyDetailsModel)
Line 46: {
Line 47: foreach (var address in CompanyDetailsModel.Addressess)
Line 48: {
Line 49:
源文件:C:\用戶\戈茲貝達\文檔\ Visual Studio 2010的\項目\ Portaal \控制器\ CompaniesController.cs行:47
堆棧跟蹤:
[NullReferenceException: Object reference not set to an instance of an object.]
Portaal.Controllers.CompaniesController.Create(CompanyDetailsModel CompanyDetailsModel) in C:\Users\Goz\Documents\Visual Studio 2010\Projects\Portaal\Controllers\CompaniesController.cs:47
lambda_method(Closure , ControllerBase , Object[]) +108
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +208
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +55
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +191
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() +8920029
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184
我很抱歉,但我並不完全明白你的意思。你能解釋一下嗎?我不知道如果我解釋好,但錯誤是在後控制器.. – Gyocol
哦確定...你發佈異常的堆棧跟蹤? – Ankur
是的,當然,我正在查找如何正確添加堆棧跟蹤到我的問題...找不到它大聲笑,在此先感謝 – Gyocol