Jquery表单验证插件formValidator使用方法_jquery

public void ProcessRequest(HttpContext context)
    {
      context.Response.ContentType = "text/plain";
      #region 判断用户是否被注册过
      string returnStr = "";
      //这里其实是context.Request.QueryString根据name获取的值 一定要设置空间的name值
      if (context.Request["userName"] != null && context.Request["userName"].ToString().Length > 0)
      {
        if (isExist(context.Request["userName"].ToString()))
        {
          returnStr = "false";
        }
        else
        {
          returnStr = "0";
        }        
      }
      else
      {
        returnStr = "null";
      }
      context.Response.Write(returnStr);
      context.Response.End();
      #endregion
    }

    #region 判断用户是否被注册过
    public bool isExist(string userName)
    {
      Snet.BLL.UserAccount bll = new BLL.UserAccount();
      return bll.Exists(userName);
    }
    #endregion