MVC3远程属性 - 验证

Question

我有一个班级管理员:

    public class Admin
    {
        public virtual int AdminId { get; set; }

        [Remote("UsernameAvailable", "Admins")]
        [Display(Name = "lblUsername", ResourceType = typeof(Resources.Admin.Controllers.Admins))]
        public virtual string Username { get; set; }
...

然后我有一个用于视图的viewmodel类:

   public class AdminsEditViewModel 
    {

        public Admin Admin { get; set; }

        public IEnumerable<SelectListItem> SelectAdminsInGroup { get; set; }
...

控制器:

public ActionResult UsernameAvailable(string Username)
{
    return Json(this.AdminRepository.GetLoginByUsername(Username), JsonRequestBehavior.AllowGet);

}

但是,字符串Username始终为null,因为发送给Action的是:

http://localhost/admin/admins/usernameavailable?Admin.Username=ferwf

问题是UsernameAvailable在http查询中发送Admin.Username值和NOT Username值.我如何使用视图模型？

谢谢

Answer 1

您可以为默认模型绑定器指定前缀:

public ActionResult UsernameAvailable([Bind(Prefix = "Admin")]string username)
{
    return Json(
        this.AdminRepository.GetLoginByUsername(username), 
        JsonRequestBehavior.AllowGet
    );
}

或使用您的Admin模型:

public ActionResult UsernameAvailable(Admin admin)
{
    return Json(
        this.AdminRepository.GetLoginByUsername(admin.Username), 
        JsonRequestBehavior.AllowGet
    );
}

username假设以下请求,现在参数将被正确绑定:

http://localhost/admin/admins/usernameavailable?Admin.Username=ferwf