想象一下这种情况:
设置
在默认的 MVC3 项目中,在AccountModels.cs
public class GlobalAccount
{
public GlobalAccount()
{
this.LogOn = new LogOnModel();
this.Register = new RegisterModel();
}
public LogOnModel LogOn { get; set; }
public RegisterModel Register { get; set; }
}
在RegisterModel
更改UserName
为:
[Required]
[Remote("UserNameExists", "Validation", "", ErrorMessage = "Username is already taken.")]
[RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed.")]
[Display(Name = "Username (spaces will be stripped, must be at least 6 characters long)")]
public string UserName { get; set; }
控制器中的UserNameExists
方法Validation
如下:
public class ValidationController : Controller
{
public JsonResult UserNameExists(string UserName)
{
string user = null;
if (!String.IsNullOrWhiteSpace(UserName) && UserName.Length >= 6)
user = UserName == "abcdef" ? "ok" : null;
return user == null ?
Json(true, JsonRequestBehavior.AllowGet) :
Json(string.Format("{0} is not available.", UserName), JsonRequestBehavior.AllowGet);
}
}
现在在注册视图中,使用GlobalAccount
模型而不是RegisterModel
用户名输入框将如下所示:
@model Your.NameSpace.Models.GlobalAccount
和
<div class="field fade-label">
@Html.LabelFor(model => model.Register.UserName, new { @class = "text" })
@Html.TextBoxFor(model => model.Register.UserName, new { spellcheck = "false", size = "30" })
</div>
这将在 HTML 中产生类似的结果
<div class="field fade-label">
<label class="text" for="Register_UserName"><span>Username (spaces will be stripped, must be at least 6 characters long)</span></label>
<input data-val="true" data-val-regex="White space is not allowed." data-val-regex-pattern="(\S)+" data-val-remote="Username is already taken." data-val-remote-additionalfields="*.UserName" data-val-remote-url="/beta/Validation/UserNameExists" data-val-required="The Username (spaces will be stripped, must be at least 6 characters long) field is required." id="Register_UserName" name="Register.UserName" size="30" spellcheck="false" type="text" value="">
</div>
调试
如果您使用 FireBug 检查发生了什么......远程验证将属性名称而不是属性id发送到验证方法(那个UserNameExists
),如下所示:
Register.UserName
代替Register_UserName
所以我无法获取这个值......永远:(
这真的是一个错误还是有人已经发现而我无法通过谷歌搜索得到它?
这是实际问题的简单图像: