ASP.net MVC Error: not all code paths return a value

Question

I am trying add Authentication where a user details will be verified by the system. However, I am having multiple errors.

Controller class, I added the following code:

public ActionResult ForgotLoginId()
        {
            return View();
        }

        [HttpPost]
        public ActionResult ForgotLoginId(Testing ForgotLIDAuthentication)
        {
            if (ModelState.IsValid)
            {
                using(SUPRTestingDBEntities2 db = new SUPRTestingDBEntities2())
                {
                    var obj = db.SUPRTesting.Where(a => a.EmailID.Equals(ForgotLIDAuthentication.EmailID) && a.TaxID.Equals(ForgotLIDAuthentication.TaxID)).FirstOrDefault();
                    if (obj != null)
                    {
                        Session["LoginID"] = obj.EmailID.ToString();
                        Session["TaxID"] = obj.TaxID.ToString();
                        return RedirectToAction("UserAuthentication");
                    }
                }          
            }
            return View(ForgotLIDAuthentication);
        }

        public ActionResult LIDAuthentication() 
/*This is where I am getting the error CS0161   'CorporationController.LIDAuthentication()': not all code paths return a value*/

        {
            if (Session["LoginID"] != null)
            {
                return View();
            }
            else
            {
                RedirectToAction("ForgotLoginId");
            }
        }

View, I added the following code:

@model IEnumerable

@{
    ViewBag.Title = "Corporation Registration";
}


@using (Html.BeginForm("LIDAuthentication", "Corporation", FormMethod.Post))
{

    @Html.ValidationSummary(true)
if (ViewBag.Message != null)
{
    
        @ViewBag.Message
    
}

    
        Forgot Login ID
    


    
        
        * Required Entry
        

        

        

        
        Email Address:
        *
        
        @Html.TextAreaFor(a => a.EmailID)
@Html.ValidationMessageFor(a => a.EmailID)

In the above two line, I am having the following error: 'IEnumerable' does not contain a definition for 'EmailID' and no accessible extension method 'EmailID' accepting a first argument of type 'IEnumerable' could be found (are you missing a using directive or an assembly reference?)

        
        

        

        

        
        Tax ID:
        
        *
        
        @Html.TextAreaFor(a => a.Password)
@Html.ValidationMessageFor(a => a.Password)

In the above 2 line, I am having the following error:The type arguments for method 'TextAreaExtensions.TextAreaFor(HtmlHelper, Expression>)' cannot be inferred from the usage. Try specifying the type arguments explicitly.

        
        

        

        

        
        (Enter Federal Tax ID) or (SSN) 9 numbers, do not enter dashes or spaces.
        

        

        
        If you don't know Email Address, then please call Helpdesk at 1-800-000-0000
        

        

        
        
        
        
        

        

        

        
        Email Address or the Login ID does not match. Please verify and enter the details again.

    

}

Global.asax has:

namespace WebApplicationTesting
{
    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
        }
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");


            routes.MapRoute(
                "LoginPage",                                              // Route name
                "{controller}/{action}/{id}",                           // URL with parameters
                new { controller = "CorporationController", action = "LoginPage", id = "" }  // Parameter defaults
            );            
        }
    }
}

The Model class is as follows:

public partial class Testing
    {
        public int LoginID { get; set; }
        [Required]
        public string EmailID { get; set; }
        [Required]
        public int TaxID { get; set; }

        public string Password { get; set; }
        [Required]
        public string CorporationName { get; set; }        
    }

Can someone help me with this. The page is

SteinTech · Accepted Answer

the method LIDAuthentication doesn't return a value the session value is null.

public ActionResult LIDAuthentication() 
{
    if (Session["LoginID"] != null)
    {
        return View();
    }

    return new RedirectToActionResult("action", "controller", null);
}

The page model is an IEnumerable containing Testing object, instead of one Testing object. It looks for a property on the IEnumerable that's not there

Change

@model IEnumerable

to

@model WebApplicationTesting.Models.Testing

also check the code that call's the view so the model is correct

ASP.net MVC Error: not all code paths return a value

Answers (1)

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