原理:用户在文本框中输入一个字符(或输入字符的首字母),然后利用ajax,从后台服务器中进行检索,组装后并返回到页面,页面通过javascript进行解析,在一个层里面显示出来. 类似的效果如下: <%@ page language="java" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
1.效果图 2.数据库中表数据结构 3.前台页面 <select id="pid" runat="server" style="width:160px;" > <option value="0" data="|0|">不选父级类</option> </select> 4.后台代码 using System; using System.Data; using S
1,简介 The SwipeRefreshLayout should be used whenever the user can refresh the contents of a view via a vertical swipe gesture. The activity that instantiates this view should add an OnRefreshListener to be notified whenever the swipe to refresh gestur