C# 使用 DataAnnotations 和 DataType 验证电子邮件模型
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Email model validation with DataAnnotations and DataType
提问by lifeofbenschi
I have following model:
我有以下型号：
public class FormularModel
{
[Required]
public string Position { get; set; }
[Required]
[DataType(DataType.EmailAddress)]
public string Email { get; set; }
[Required]
public string Webcode { get; set; }
}
Required validation works fine. But when i try with DataType it doesn't react.
所需的验证工作正常。但是当我尝试使用 DataType 时它没有反应。
Here is my razor code for the email control:
这是我用于电子邮件控件的剃刀代码：
@Html.TextBoxFor
(model => model.Email,
new { @style = "width: 175px;", @class = "txtField" }
) *
So, anyone know an answer?
所以，有人知道答案吗？
TIA
TIA
采纳答案by Leniel Maccaferri
DataTypeattribute is used for formatting purposes, not for validation.
DataType属性用于格式化目的，而不是用于验证。
I suggest you use ASP.NET MVC 3 Futuresfor email validation.
我建议您使用ASP.NET MVC 3 Futures进行电子邮件验证。
Sample code:
示例代码：
[Required]
[DataType(DataType.EmailAddress)]
[EmailAddress]
public string Email { get; set; }
If you happen to be using .NET Framework 4.5, there's now a built in EmailAddressAttributethat lives in System.ComponentModel.DataAnnotations.EmailAddressAttribute.
如果您碰巧正在使用.NET Framework 4.5，那么现在有一个内置EmailAddressAttribute于System.ComponentModel.DataAnnotations.EmailAddressAttribute.
回答by Aliostad
I have looked at the source code (reverse engineered by Reflector) and DataTypevariants are actually not even implemented! (This was for DateType.Date)
我查看了源代码（由 Reflector 逆向工程），DataType实际上甚至没有实现变体！（这是为了DateType.Date）
So it is not going to work.
所以它不会起作用。
I would personally use RegexValidationfor email.
我个人会RegexValidation用于电子邮件。
For clarity, here is the implementation of IsValidin class DataTypeAttribute:
为清楚起见，这里是IsValidin class的实现DataTypeAttribute：
public override bool IsValid(object value)
{
return true;
}
回答by jrummell
The DataAnnotationsExtensionsproject has an Email attributethat you can use.
该DataAnnotationsExtensions项目有一个电子邮件属性，您可以使用。
回答by Wmanuelcr
I think you need to add at html code one componente Html.ValidationMessageFor. This component shows the validation.
我认为您需要在 html 代码中添加一个 componente Html.ValidationMessageFor。此组件显示验证。
The code may be (using razor):
代码可能是（使用剃刀）：
@Html.TextBoxFor(model => model.Email)
@Html.ValidationMessageFor(model => model.Email)
try it.
尝试一下。
