MVC 3 - 型號總是空的Ajax控制器

當通過AJAX發佈表單值到我的控制器（/聯繫人/過程），該模型總是以空來了，ModelState.IsValid永遠是假的。不知道模型爲什麼會變爲空。 AJAX文章正在工作，並有水合參數。

感謝

螢火
參數
Contact.Email [email protected]
Contact.FirstName約翰
Contact.LastName李四
Contact.Message您好
X-請求─使用XMLHttpRequest
contact Submit

視圖模型

namespace GuitarCollector.Models.ViewModels 
{ 
    public class ContactViewModel 
    { 
     public Contact Contact { get; set; } 
    } 
}

示範

namespace GuitarCollector.Models 
{ 
    public class Contact 
    { 
     //Primary Key 
     public int Id { get; set; } 

     [Display(Name = "First name")] 
     [Required(ErrorMessage = "Please enter your first name")] 
     public string FirstName { get; set; } 

     [Display(Name = "Last name")] 
     [Required(ErrorMessage = "Please enter your last name")] 
     public string LastName { get; set; } 



     [Display(Name = "Email address")] 
     [Required(ErrorMessage = "Please enter your email address")] 
     public string Email { get; set; } 

     [Display(Name = "Message")] 
     [Required(ErrorMessage = "Please enter your message")] 
     public string Message { get; set; } 

     public DateTime DateCreated { get; set; } 
    } 
}

表單

<div id="content"> 
    <div id="Status"></div> 
    @using (Ajax.BeginForm("Process","Contact", new AjaxOptions{ HttpMethod = "POST", UpdateTargetId = "Status"})) 
    { 
     @Html.ValidationSummary(true) 

     <p><span class="required">&#42; All fields are required.</span></p> 

     <!-- First Name --> 
     <div> 
      @Html.LabelFor(model => model.Contact.FirstName) <span class="required">&#42;</span> 
     </div> 
     @Html.EditorFor(model => model.Contact.FirstName) 
     @Html.ValidationMessageFor(model =>model.Contact.FirstName) 

     <!-- Last Name --> 
     <div> 
      @Html.LabelFor(model => model.Contact.LastName) <span class="required">&#42;</span> 
     </div> 
     @Html.EditorFor(model => model.Contact.LastName) 
     @Html.ValidationMessageFor(model =>model.Contact.LastName) 

     <!-- Email --> 
     <div> 
      @Html.LabelFor(model => model.Contact.Email) <span class="required">&#42;</span> 
     </div> 
     @Html.EditorFor(model => model.Contact.Email) 
     @Html.ValidationMessageFor(model =>model.Contact.Email) 

     <!-- Message --> 
     <div> 
      @Html.LabelFor(model => model.Contact.Message) <span class="required">&#42;</span> 
     </div> 
     @Html.TextAreaFor(model => model.Contact.Message) 
     @Html.ValidationMessageFor(model =>model.Contact.Message) 

     <div> 
      <input type="submit" name="contact" id="contact" value="Submit" class="btn"/> 
     </div> 

    } 

</div>

的控制器

[HttpPost] 
public ActionResult Process(ContactViewModel model) 
{ 
    if (ModelState.IsValid) 
    { 
     model.Contact.DateCreated = DateTime.Now; 
     db.Contacts.Add(model.Contact); 
     db.SaveChanges(); 

     return Content("Success!"); 

    } 

    return Content("Failure"); 

}

來源

2013-12-18 Slinky

這將是DateTime –

嘗試將' name屬性更改爲別的。 – Zabavsky

謝謝。這是解決方案的一部分。我將提交按鈕名稱和ID屬性重命名爲「contactForm」，並且還必須刪除隱藏字段：Contact.Id和Contact.DateCreated。請將您的答案與解釋一起發佈 – Slinky

你必須給一些其他的名字比你的視圖模型的屬性名稱或submit輸入完全刪除它。我認爲你並不需要它。在這種情況下，它不會被序列化並傳遞給控制器。

該模型即將爲空，因爲模型聯編程序無法將值「Submit」綁定到Contact屬性。

來源

2013-12-18 18:12:26 Zabavsky

您忘了：

@Html.HiddenFor(model => model.Contact.Id) 
@Html.HiddenFor(model => model.Contact.DateCreated)

而且asp.net的MVC無法做出具有約束力的

來源

2013-12-18 17:43:42

謝謝，良好的抓住，但仍然模型是在null – Slinky

MVC 3 - 型號總是空的Ajax控制器

回答

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