Hi Everybody,

I have and mvc3 application:

ActivityController:

[code]
public ActionResult Edit(int id)
        {
            Activity activity = db.Activities.Find(id);
            PopulateProjectsDropDownList(activity.ProjectID);

            activity = db.Activities
               .Include(i => i.Employee)
               .Where(i => i.ActivityID == id)
               .Single();
            PopulateAssignedEmployeeData(activity);


            return View(activity);
        }//end method

        [HttpPost]
        public ActionResult Edit(int? id, FormCollection formCollection, string[] selectedEmployees)
        {
            if (id == null)
            {
                return View("Index");
            }

            var actvityToUpdate = db.Activities
                .Include(a => a.Employee)
                .Where(i => i.ActivityID == id)
                .Single();
            if (TryUpdateModel(actvityToUpdate, "", null, new string[]{"Employees"} ))
            {
                try
                {
                    UpdateActivityEmployeeData(selectedEmployees, actvityToUpdate);
                    db.Entry(actvityToUpdate).State = EntityState.Modified;
                    db.SaveChanges();
                    return Redirect("Index");
                    //if (string.IsNullOrWhiteSpace(actvityToUpdate.))
                    //{

                    //}
                }
                catch (Exception exception)
                {

                   //Log the error (add a variable name after DataException)
            ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists save urself");
                    ModelState.AddModelError("",exception.Message);
                   // ModelState.AddModelError("",form );
                }//end catch
            }
            PopulateAssignedEmployeeData(actvityToUpdate);
            return View(actvityToUpdate);

        }//end method
[/code]

Model Activity:

[code]
public class Activity
    {
        //[Key]
        //[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        //[Display(Name = "Nummer(willekeurig nummer)")]
        //[Key]
        public int ActivityID { get; set; }
        [Required(ErrorMessage = "Naam moet wel ingevuld worden")]
        [MaxLength(50)]
        [Display(Name = "Activiteit")]
        public string Name { get; set; }

        [Display(Name = "Omschrijving")]
        public string Description { get; set; }

        [Display(Name = "uren")]
        public decimal Hour { get; set; }

        [DataType(DataType.Date)]
        [Display(Name = "Begin datum")]
        public DateTime BeginDate { get; set; }

        [DataType(DataType.Date)]
        [Display(Name = "Eind datum")]
        public DateTime EndDate { get; set; }

        [Display(Name = "Tarief")]
        public decimal Tariff { get; set; }

        [Display(Name = "Actief?")]
        public bool Active { get; set; }

        [Display(Name = "project")]
        public int ProjectID { get; set; }
        //public virtual DbSet Project { get; set; }
        public virtual Project Project { get; set; }
        public virtual ICollection Employee { get; set; }
        //public virtual ICollection Activities { get; set; }
        public virtual ICollection Hours { get; set; }

    }
[/code]

But when I try to Edit the form, for example this Object:
http://localhost:56610/Activity/Edit/4

And I post, then I get this error:

Server Error in '/' Application.

The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult Edit(Int32)' in 'ManyToMany.Controllers.ActivityController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
Parameter name: parameters

and the routing is then:

http://localhost:56610/Activity/Edit/Index

THX

The activity is updating.

Because if I choose: http://localhost:56610/Activity/Edit/4

and I update it then I see the update in: http://localhost:56610/Activity.

But the routing is not working correct. Because if I press on the Save button then I will be redirect to: http://localhost:56610/Activity/Edit/Index.

instead of: http://localhost:56610/Activity/.

And this I have in the: Global.asax file:

[code]
public class MvcApplication : System.Web.HttpApplication
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new HandleErrorAttribute());
           // filters.Add(new HandleLoggingAttribute());
        }

        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
               "Default", // Route name
               "{controller}/{action}/{id}", // URL with parameters
               new { controller = "Home", action = "Index", id = UrlParameter.Optional }
               //new { ActivityID = @"\d+" }// Parameter defaults
           );

            /*
            routes.MapRoute(
      "Activity",
      "Activity/{ActivityID}",
      new { controller = "Activity", action = "Edit" },
      new { ActivityID = @"\d+" }
   );
             */
        }

        protected void Application_Start()
        {
            ModelBinders.Binders.Add(typeof(decimal),
            new DecimalModelBinder());

            Database.SetInitializer(new TimeSheetInitializer());
            AreaRegistration.RegisterAllAreas();

            RegisterGlobalFilters(GlobalFilters.Filters);
            RegisterRoutes(RouteTable.Routes);
        }
    }
[/code]

But I dont know how to change the routing?
Because for other objects it is working. I mean the editing function.

THX

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

albert albert14y ago
The activity is updating.

Because if I choose: http://localhost:56610/Activity/Edit/4

and I update it then I see the update in: http://localhost:56610/Activity.

But the routing is not working correct. Because if I press on the Save button then I will be redirect to: http://localhost:56610/Activity/Edit/Index.

instead of: http://localhost:56610/Activity/.

And this I have in the: Global.asax file:

[code]
public class MvcApplication : System.Web.HttpApplication
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new HandleErrorAttribute());
           // filters.Add(new HandleLoggingAttribute());
        }

        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
               "Default", // Route name
               "{controller}/{action}/{id}", // URL with parameters
               new { controller = "Home", action = "Index", id = UrlParameter.Optional }
               //new { ActivityID = @"\d+" }// Parameter defaults
           );

            /*
            routes.MapRoute(
      "Activity",
      "Activity/{ActivityID}",
      new { controller = "Activity", action = "Edit" },
      new { ActivityID = @"\d+" }
   );
             */
        }

        protected void Application_Start()
        {
            ModelBinders.Binders.Add(typeof(decimal),
            new DecimalModelBinder());

            Database.SetInitializer(new TimeSheetInitializer());
            AreaRegistration.RegisterAllAreas();

            RegisterGlobalFilters(GlobalFilters.Filters);
            RegisterRoutes(RouteTable.Routes);
        }
    }
[/code]

But I dont know how to change the routing?
Because for other objects it is working. I mean the editing function.

THX

Error in the Edit

Server Error in '/' Application.