MVC5單選按鈕組和角色

Question

我在綁定兩個單選按鈕到我在模型中指定的角色的enum方面存在問題。該角色是在註冊時選擇的，當我設置角色並提交表單時，即使我單擊Receiver角色的其他單選按鈕，也只有Provider的第一個角色被傳遞給控制器​​。

我已經調試並設置了大部分代碼的斷點，但我只看到Provider被髮送到控制器的角色。 問題：如何正確地將我的枚舉綁定到我的單選按鈕？還是有我應該使用的另一種方法？

注意：註冊模型的其餘部分正確綁定，其他所有內容都提交併正確插入數據庫，但角色除外。

MODEL

public enum AppRoles 
    { 
     Provider, 
     Receiver, 
     Admin 
    } 

    public class RegisterViewModel 
    { 
     [Required] 
     [EmailAddress] 
     [Display(Name = "Email")] 
     public string Email { get; set; } 

     [Required] 
     [StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)] 
     [DataType(DataType.Password)] 
     [Display(Name = "Password")] 
     public string Password { get; set; } 

     [DataType(DataType.Password)] 
     [Display(Name = "Confirm password")] 
     [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")] 
     public string ConfirmPassword { get; set; } 

     [Required] 
     [Display(Name = "Role")] 
     public AppRoles Role { get; set; } 
    } 

VIEW（僅適用於單選按鈕相關的代碼）

<div class="form-group"> 
     <div class="col-md-12 text-center"> 
      <h3>Select Your Account Type</h3> 
      <div class="btn-toolbar" data-toggle="buttons"> 
       <label class="btn btn-primary"> 
        Service Receiver 
        @Html.RadioButtonFor(m => m.Role, AppRoles.Receiver, "Receiver") 
       </label> 

       <label class="btn btn-primary"> 
        Service Provider 
        @Html.RadioButtonFor(m => m.Role, AppRoles.Provider, "Provider") 
        </label> 

      </div> 
    </div> 

控制器

 [HttpPost] 
     [AllowAnonymous] 
     [ValidateAntiForgeryToken] 
     public async Task<ActionResult> Register(RegisterViewModel model) 
     { 
      if (ModelState.IsValid) 
      { 
       var user = new ApplicationUser { UserName = model.Email, Email = model.Email }; 
       var result = await UserManager.CreateAsync(user, model.Password); 
       if (result.Succeeded) 
       { 
        result = UserManager.AddToRole(user.Id, model.Role.ToString()); 
        await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false); 


        if (model.Role.ToString() == "Provider") 
        { 
         return RedirectToAction("ProviderPostRegistration", "Account"); 
        } 
        else if (model.Role.ToString() == "Receiver") 
        { 
         return RedirectToAction("ReceiverPostRegistration", "Account"); 
        } 
       } 
       AddErrors(result); 
      } 

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

Answer 1

輸入的值必須是整數。當它與請求一起發送時，它被轉換爲從整數枚舉。你應該改變你的觀點一樣：

@Html.RadioButtonFor(m => m.Role, (int)AppRoles.Receiver) 

還要注意的是，因爲你送的價值不能被解析，它被設置爲枚舉，這是供應商的默認值。