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Passing array to view using MVC query string

I have multiple roles and I need to transfer these roles to another view using the Return RedirectTo Action method,

My code

string[] roles = new string[] { "Admin", "Supervisor", "Interviewer" };
if (roles.Count() > 1)
{
    return RedirectToAction("LoginAs","Admin",new{@roles = roles});
}

When I go through as shown in the LoginAs view I like the Url,

http://localhost:33883/Admin/LoginAs?roles=System.String[]

But no values ​​passed.

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1 answer


Option 1:

    public ActionResult Index()
    {
        string[] roles = new string[] { "Admin", "Supervisor", "Interviewer" };
        var routeParameters = new RouteValueDictionary();
        for (int i = 0; i < roles.Length; i++)
        {
            routeParameters["roles[" + i + "]"] = roles[i];
        }
        return RedirectToAction("Test", "Student", routeParameters);
    }

    public ActionResult Test(string[] roles)
    {
        return View("Index");
    }

Output -

enter image description here

Option 2: UseTempData 

    public ActionResult Index()
    {
        string[] roles = new string[] { "Admin", "Supervisor", "Interviewer" };
        TempData["data"] = roles;
        return RedirectToAction("Test", "Student");
    }

    public ActionResult Test()
    {
        string[] roles = (string[])TempData["data"];
        return View("Index");
    }


Output -

enter image description here

Option 3: UseSession 

    public ActionResult Index()
    {
        string[] roles = new string[] { "Admin", "Supervisor", "Interviewer" };
        Session["data"] = roles;
        return RedirectToAction("Test", "Student");
    }

    public ActionResult Test()
    {
        string[] roles = (string[])Session["data"];
        return View("Index");
    }

Output -

enter image description here

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