是否对模型做DataTypeAttribute中的验证MVC 3？ [英] Does the DataTypeAttribute on a model do validation in MVC 3?

问题描述

默认ASP.net MVC 3 Internet应用程序模板包括以下型号：

The default ASP.net MVC 3 Internet Application template includes the following model:

public class RegisterModel
{
    [Required]
    [Display(Name = "User name")]
    public string UserName { get; set; }

    [Required]
    [DataType(DataType.EmailAddress)]
    [Display(Name = "Email address")]
    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; }
}

在帐户/注册行动它所需要的电子邮件地址，但似乎你可以在此字段中输入任何东西，它会接受它。

In the Account/Register action it is asking for an email address, but it seems you can type anything in this field and it will accept it.

请问数据类型（DataType.EmailAddress）实际上触发验证？现在看来似乎没有。如果不验证类型，然后其目的是什么？

Does the DataType(DataType.EmailAddress) actually trigger validation? It seems like it does not. If it doesn't validate the type, then what is its purpose?

推荐答案

到目前为止我所知，数据类型属性用于格式化，但只有当你使用 @ Html.EditorFor（型号= ＆GT; model.Field）

So far as I'm aware, the DataType attribute is used for formatting but only when you use @Html.EditorFor(model => model.Field).

从示范田，CSHTML例子还有生成的HTML：

Examples from model fields, cshtml and the resulting HTML:

示范田：

[Required]
[DataType(DataType.Text)]
[Display(Name = "Name")]
public string Name { get; set; }

[Required]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; }

[Required]
[DataType(DataType.MultilineText)]
[Display(Name = "Description")]
public string Desc { get; set; }

CSHTML：

Cshtml:

<div class="form-section">
    @Html.LabelFor(x => x.Name)
    @Html.EditorFor(x => x.Name)
</div>

<div class="form-section">
    @Html.LabelFor(x => x.Password)
    @Html.EditorFor(x => x.Password)
</div>

<div class="form-section">
    @Html.LabelFor(x => x.Desc)
    @Html.EditorFor(x => x.Desc)
</div>

生成的HTML：

Resulting HTML:

<div class="form-section">
    <label for="Name">Name</label>
    <input class="text-box single-line" id="Name" name="Name" type="text" value="">
</div>
<div class="form-section">
    <label for="Password">Password</label>
    <input class="text-box single-line password" id="Password" name="Password" type="password" value="">
</div>
<div class="form-section">
    <label for="Desc">Description</label>
    <textarea class="text-box multi-line" id="Desc" name="Desc"></textarea>
</div>

我知道这是一个古老的职位，但也许我可以在这种情况光芒照耀别人说这种方式来

I know it's an old post, but maybe I can shine a light on the situation for others that come this way

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