C#实现WAP网站二级联动

来源：互联网发布：奇葩搞笑淘宝买家秀编辑：程序博客网时间：2024/06/04 23:34

最近心血来潮,研究一下C#开发WAP网站,百度、谷歌一下资料,汗!甚少 !研究了半天,找到一种解决省市二级联动的问题办法,比较麻烦,此为抛砖引玉,希望大家探索出好的方法分享一下!

新建一个“移动WEB窗体”,拖出两个Form,Form1和Form2,Form1中SelectionList1表示省份,Form2中的SelectionList2表示城市。

Default2.aspx代码如下:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %><%@ Register TagPrefix="mobile" Namespace="System.Web.UI.MobileControls" Assembly="System.Web.Mobile" %><html xmlns="http://www.w3.org/1999/xhtml" ><body> <mobile:Form id="Form1" runat="server"> <mobile:SelectionList ID="SelectionList1" Runat="server" > </mobile:SelectionList> <mobile:Command ID="Command1" OnClick="HandleSingleSelection" Runat="server">下一步</mobile:Command> </mobile:Form> <mobile:Form ID="Form2" Runat="server"> <mobile:SelectionList ID="SelectionList2" Runat="server"> </mobile:SelectionList> <mobile:SelectionList ID="sexList" Runat="server" > <Item Selected="True" Value ="男" /> <Item Value ="女" /> </mobile:SelectionList> <mobile:Command ID="Search" OnClick="Search_Click" Runat="server">搜索</mobile:Command> </mobile:Form></body></html>

Default2.aspx.cs代码如下:

using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Drawing;using System.Web;using System.Web.Mobile;using System.Web.SessionState;using System.Web.UI;using System.Web.UI.MobileControls;using System.Web.UI.WebControls;using System.Web.UI.HtmlControls;public partial class Default2 : System.Web.UI.MobileControls.MobilePage{ protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { this.bindData(); } } public void bindData() { this.SelectionList1.DataSource = new SelectPlace().getProvinceInfo(""); this.SelectionList1.DataTextField = "PROVINCE_NAME"; this.SelectionList1.DataValueField = "PROVINCE_ID"; this.SelectionList1.DataBind(); } public void bindData2() { this.ActiveForm = Form2; //获取选定的数据的Text的值 //string aa = SelectionList1.Selection.ToString(); //获取选定的数据的Value的值 string index = SelectionList1.Items[SelectionList1.SelectedIndex].Value; DataSet ds = new SelectPlace().getCityInfo(" PROVINCE_ID='" + index + "'"); this.SelectionList2.DataSource = ds; this.SelectionList2.DataTextField = "CITY_NAME"; this.SelectionList2.DataValueField = "CITY_NO"; this.SelectionList2.DataBind(); } protected void HandleSingleSelection(object sender, EventArgs e) { this.bindData2(); } protected void Search_Click(object sender, EventArgs e) { }}

其中 this.ActiveForm = Form2;必选,意在显示Form2,getProvinceInfo("")和getCityInfo(" ")返回值为DataSet,为业务处理层方法,读者根据自己需求进行编写。 this.SelectionList1.DataTextField = "PROVINCE_NAME";指定下拉列表显示的内容
this.SelectionList1.DataValueField = "PROVINCE_ID";指定下拉列表对应的值
string aa = SelectionList1.Selection.ToString();//获取选定的数据的Text的值
string index = SelectionList1.Items[SelectionList1.SelectedIndex].Value;//获取选定的数据的Value的值

希望读者指点!