POST 上的表单字段为空

Question

我有简单的联系表，这是（视图）模型：

public class ContactForm
{
    [Required]
    public string Name;
    [Required]
    public string Email;
    [Required]
    public string Subject;
    [Required]
    public string Msg;
}

控制器：

public ActionResult Contact (ContactForm form)
{
    return RedirectToAction("Index");
}

查看：

@model myNamespace.ContactForm
...
@using (Html.BeginForm("Contact", "Home", FormMethod.Post))
{
    @Html.LabelFor(x => x.Name)
    @Html.TextBoxFor(x => x.Name)
    @Html.LabelFor(x => x.Email)
    @Html.TextBoxFor(x => x.Email)
    @Html.LabelFor(x => x.Subject)
    @Html.TextBoxFor(x => x.Subject)
    @Html.LabelFor(x => x.Msg)
    @Html.TextAreaFor(x => x.Msg)
    <button type="submit">Enviar</button>
}

Controller 的 Contact 方法被调用。但是参数 form 的所有字段都为空：

Answer 1

您需要 public properties with get set in your Model not fields，目前您在模型 class 中创建了字段，这对您不起作用：

public class ContactForm
{
[Required]
public string Name {get;set;}
[Required]
public string Email { get; set;}
[Required]
public string Subject {get;set;}
[Required]
public string Msg{get;set;}
}