同一浏览器中的不同多次登录无法同时在MVC中使用

Question

I'm using MVC 5 , when i Publish MVC Application on IIS then login with two different username like first is "A" and other is "B" .When I login Successful then login with B at same browser login successful
But the Problem is when i refresh A then username B has login so we can not login one browser with different name, i want to create different user can login at same browser and same PC How can i do this .

Controller


[HttpGet]
            public ActionResult Login()
            {
                return View();
            }

            [HttpPost]
            public ActionResult Login(LeadUsers log, string returnUrl)
            {
                if (ModelState.IsValid)
                {
                    System.Data.DataTable mDT_User = log.loginUser(log.Username, log.Password);



                    if (mDT_User.Rows.Count > 0)
                    {
                        FormsAuthentication.SetAuthCookie(log.Username, true);

                        Session["AgentID"] = int.Parse(mDT_User.Rows[0][0].ToString());
                        Session["AgentName"] = mDT_User.Rows[0][1].ToString().Trim();
                        Session["User_Type"] = mDT_User.Rows[0][2].ToString().Trim();



                        clsCommon._AgentID = int.Parse(mDT_User.Rows[0][0].ToString());
                        clsCommon._AgentName = mDT_User.Rows[0][1].ToString().Trim();
                        clsCommon._UserType = mDT_User.Rows[0][2].ToString().Trim();
                        clsCommon._GroupID = int.Parse(mDT_User.Rows[0][3].ToString());

                        // User Role


                        using (SqlConnection con = new SqlConnection(constring))
                        {
                            con.Open();
                            using (SqlCommand cmd = new SqlCommand("select A.Screen_Id, S.Screen_Name, Allow_Access, Access_Level from BriskSecurity.dbo.Module_Screens_Access A " +
                                                                   "inner join BriskSecurity.dbo.Module_Screens S on S.Mod_id=A.Mod_Id and S.Screen_Id=A.Screen_Id " +
                                                                   "where A.Mod_Id=14 and A.Group_Id=" + clsCommon._GroupID + "", con))
                            {
                                clsCommon._DT_Access = new DataTable();
                                SqlDataAdapter da = new SqlDataAdapter(cmd);
                                da.Fill(clsCommon._DT_Access);
                            }
                        }



                        return RedirectToAction("Index", "Dashboard"); // return index.chtml if user is valid.
                    }

                    else
                    {
                        TempData["Message"] = "Invalid Username OR Password"; // return the same view with message "Invalid username and password"
                        return RedirectToAction("Login");
                    }
                }
                else
                {
                    return RedirectToAction("Login"); // return the same view with Validation Error.
                }

            }

Login Function

public DataTable loginUser(string username, string password)
        {
            string constring = ConfigurationManager.ConnectionStrings["Real"].ConnectionString;
            using (SqlConnection con = new SqlConnection(constring))
            {
                password = Cryptographer.Encrypt(password);

                con.Open();
                using (SqlCommand cmd = new SqlCommand("select User_Id, User_Name,User_Type, Group_Id from BriskSecurity.dbo.Users where User_Login='" + username + "' and User_password='" + password + "' ", con))
                {
                    DataTable mDT_User = new DataTable();
                    SqlDataAdapter da = new SqlDataAdapter(cmd);
                    da.Fill(mDT_User);

                    return mDT_User;
                }
            }
        }

Answer 1

It is possible though to login with two different users. The first one is a regular login session. For the second user, open a Private Window (Firefox) or Incognito Window (Chrome) and login using the credentials of the second user, which operates in an isolated context. If you want more than two concurrent logins, you have to use a second browser. So for instance when using Chrome and Firefox you can have a total of four concurrent user sessions.

Answer 2

Change in the Web.Config file. In the forms authentication forms cookieless ="UseUri"