将用户添加到角色上在注册失败ASP.NET MVC3 [英] Adding users to roles on registring failed ASP.NET MVC3

问题描述

我喜欢让用户能够选择asp.net MVC Web应用程序及其对寄存器的作用。我有previous通过asp.net addministration工具添加角色。这里是code。我正在使用寄存器方法

I like to enable users to choose their role on register in asp.net mvc web application. I have previous add roles via asp.net addministration tool. Here is the code I am using in register methods

public ActionResult Register()  
{
ViewData["roleName"] = new SelectList(Roles.GetAllRoles(), "roleName");
return View();
}


 [HttpPost]
    public ActionResult Register(RegisterModel model)
    {
        if (ModelState.IsValid)
        {
            // Attempt to register the user
            MembershipCreateStatus createStatus;
            Membership.CreateUser(model.UserName, model.Password, model.Email, null, null, true, null, out createStatus);

            if (createStatus == MembershipCreateStatus.Success)
            {
                Roles.AddUserToRole(model.UserName, "roleName");
                FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */);
                return RedirectToAction("Index", "Home");
            }
            else
            {
                ModelState.AddModelError("", ErrorCodeToString(createStatus));
            }
        }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

而在注册查看我得到这个code

While in Register View I got this code

    <label for="roleName">Select Role:</label>
         @Html.DropDownList("roleName")
         @Html.ValidationMessage("roleName")

角色都写在数据库和用户虽然。然而UsersInRoles表是空的，我得到这个例外

Roles are written in the database and users although. However UsersInRoles table is empty and I got this exception

System.Configuration.Provider.ProviderException：角色角色名未找到

System.Configuration.Provider.ProviderException: The role 'roleName' was not found.

有谁有同样的问题？

推荐答案

您应该添加角色名参数来注册，获得用户角色名选择控制器动作，或者从检索的FormCollection角色名，这里是例子
你注册后行动更改为：

You should add roleName parameter to Register controller action for get selected by user roleName, or retrieve roleName from FormCollection, here is example Change your Register post action to:

        [HttpPost]
        public ActionResult Register(RegisterModel model, String roleName)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                MembershipCreateStatus createStatus;
                Membership.CreateUser(model.UserName, model.Password, model.Email, null, null, true, null, out createStatus);

                if (createStatus == MembershipCreateStatus.Success)
                {
                    Roles.AddUserToRole(model.UserName, roleName);
                    FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */);
                    return RedirectToAction("Index", "Home");
                }
                else
                {
                    ModelState.AddModelError("", ErrorCodeToString(createStatus));
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

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