System.Web.Mvc.HandleErrorInfo wrong model type

Question

i create the correct model type and dont understand where this comes from. any ideas?

System.InvalidOperationException: The model item passed into the dictionary is of type 'System.Web.Mvc.HandleErrorInfo', 
but this dictionary requires a model item of type 'BusinessLogic.Models.ErrorCodeModel'.
   at System.Web.Mvc.ViewDataDictionary`1.SetModel(Object value)
   at System.Web.Mvc.ViewDataDictionary..ctor(ViewDataDictionary dictionary)
   at System.Web.Mvc.WebViewPage`1.SetViewData(ViewDataDictionary viewData)
   at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
   at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
   at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
   at System.Web.Mvc.Controller.ExecuteCore()
   at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
   at System.Web.Mvc.MvcHandler.c__DisplayClass6.c__DisplayClassb.b__5()
   at System.Web.Mvc.Async.AsyncResultWrapper.c__DisplayClass1.b__0()
   at System.Web.Mvc.MvcHandler.c__DisplayClasse.b__d()
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

in the global.asax.cs i register a custom attribute:

        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new Controllers.ExtendendHandleErrorAttribute());
        }

the definition looks like this:

public class ExtendendHandleErrorAttribute : HandleErrorAttribute
    {
        public override void OnException(ExceptionContext filterContext)
        {                                   
            LogErrors(filterContext);
            try
            {
                base.OnException(filterContext);

                var typedResult = filterContext.Result as ViewResult;
                if (typedResult != null)
                {
                    var tmpModel = typedResult.ViewData.Model;
                    typedResult.ViewData = filterContext.Controller.ViewData;
                    typedResult.ViewData.Model = CreateModel(filterContext);
                    filterContext.Result = typedResult;
                }
            }
            catch(Exception ex) 
            {
                new LogManager().Log("ExtendendHandleErrorAttribute error", ex);
            }
        }

interesting here that i create the ErrorCodeModel.

        private ErrorCodeModel CreateModel(ExceptionContext filterContext)
        {
            var model = new ErrorCodeModel(); 

            if (filterContext.HttpContext.Session != null)
            {
                var session = filterContext.HttpContext.Session;

                model.SessionId = session.SessionID;
                StateHandler stateHandler = new StateHandler(session);
                model.FapiErrorCode = stateHandler.CustomErrorCode.ToString();               
                try
                {                    
                    model.GlobalData = new GlobalDataBuilder(stateHandler).Build();
                    model.ErrorMessage = model.GlobalData.ErrorText.TechnicalError;
                }
                catch { }
            }

            return model;
        }

my Web.config

<customErrors mode="Off" defaultRedirect="Error">
      <error statusCode="404" redirect="Error/FileNotFound" />
    </customErrors>

Answer 1

In ~/Views/Shared/Error.cshtml replace the first line:

@model System.Web.Mvc.HandleErrorInfo

with

@model BusinessLogic.Models.ErrorCodeModel

Answer 2

When you use the [HandleError] attribute on a controller or action, any exceptions thrown will cause a redirect to custom error pages as described by your web.config. By default the errors go to the ~\Views\Shared\Error.cshtml using the HandleErrorInfo model.

The web.config section can be something like:

<system.web>
  <customErrors mode="On" defaultRedirect="Error.aspx">
     <error statusCode="403" redirect="NoAccess.htm"/>
     <error statusCode="404" redirect="FileNotFound.htm"/>
  </customErrors>
</system.web>