MVC : The parameters dictionary contains a null entry for parameter 'k' of non-nullable type 'System.Int32'
Solution 1:
It appears that you are using the default route which is defined as this:
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
The key part of that route is the {id}
piece. If you look at your action method, your parameter is k
instead of id
. You need to change your action method to this so that it matches the route parameter:
// change int k to int id
public ActionResult DetailsData(int id)
If you wanted to leave your parameter as k, then you would change the URL to be:
http://localhost:7317/Employee/DetailsData?k=4
You also appear to have a problem with your connection string. In your web.config, you need to change your connection string to this (provided by haim770 in another answer that he deleted):
<connectionStrings>
<add name="EmployeeContext"
connectionString="Server=.;Database=mytry;integrated security=True;"
providerName="System.Data.SqlClient" />
</connectionStrings>
Solution 2:
It seems that your action needs k
but ModelBinder can not find it (from form, or request or view data or ..)
Change your action to this:
public ActionResult DetailsData(int? k)
{
EmployeeContext Ec = new EmployeeContext();
if (k != null)
{
Employee emp = Ec.Employees.Single(X => X.EmpId == k.Value);
return View(emp);
}
return View();
}
Solution 3:
I faced this error becouse I sent the Query string with wrong format
http://localhost:56110/user/updateuserinfo?Id=55?Name=Basheer&Phone=(111)%20111-1111
------------------------------------------^----(^)-----------^---...
--------------------------------------------must be &
so make sure your
Query String
or passed parameter in the right format