MVC Remote服务器验证如何实现自动识别？
摘要：用此验证必须在Controller中编写返回值为JsonResult的Action 实体类代码：
用此验证必须在Controller中编写返回值为JsonResult的Action
1 public JsonResult CheckUserName(string UserName)
2 {
3 EFHelper<StudentDBEntities> dbContext = EFHelper<StudentDBEntities>.GetInstance();
4 UserInfo result = dbContext.GetSingle<UserInfo>(item => item.UserName == UserName);
5 bool isExists;
6 if (result != null)
7 {
8 isExists = false;
9 return Json(isExists, JsonRequestBehavior.AllowGet);
10 }
11 else
12 {
13 isExists = true;
14 return Json(isExists, JsonRequestBehavior.AllowGet);
15 }
16
17 }
实体类代码：
1 [Remote("CheckUserName", "User", ErrorMessage = "用户名已存在")]
2 public string UserName { get; set; }