本文实例讲述了jquery json ajax 二级联动菜单。分享给码农们参考,具体如下:
后台Handler.ashx
using System; using System.Web; using System.Data; public class Handler : IHttpHandler { Common coObj = new Common(); public void ProcessRequest(HttpContext context) { if (context.Request.Params["n"] != null) { string num = context.Request.Params["n"].ToString(); context.Response.ContentType = "text/plain"; string str = "select * from address where a_num2=" + num; DataTable dt = coObj.GetTable(str); string json = JSONHelper.DataTableToJSON(dt); context.Response.Write(json); } } public bool IsReusable { get { return false; } } }
前台dropdownlist.html
dropdownlit
jquery json ajax 二级联动菜单实例,需要的码农拿去参考。