/// <summary>
 /// 检查确认密码和新密码是否一致
 /// </summary>
 /// <param name="model"></param>
 /// <returns></returns>
 public JsonResult ValidateSamePwd(EditPwdViewModel model)
 {
     if (model != null && !string.IsNullOrWhiteSpace(model.NewPwd))
     {
         if (model.NewPwd != model.RepeatPwd)
         {
             return Json("密码不一致", JsonRequestBehavior.AllowGet);
         }
     }
     return Json(true, JsonRequestBehavior.AllowGet);
 }
 /// <summary>
 /// 检查旧密码是否正确
 /// </summary>
 /// <param name="model"></param>
 /// <returns></returns>
 public JsonResult ValidateOldPwd(EditPwdViewModel model)
 {
     if (model != null && !string.IsNullOrWhiteSpace(model.OldPwd) && !string.IsNullOrWhiteSpace(model.Id))
     {
         if (!UserModel.Exists("Password = @0 and ID = @1", model.OldPwd.VariationMd5(), model.Id))
         {
             return Json("旧密码错误", JsonRequestBehavior.AllowGet);
         }
     }
     return Json(true, JsonRequestBehavior.AllowGet);
 }