86 lines
2.2 KiB
C#
86 lines
2.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Data;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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namespace FineUI.Examples.data
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{
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public partial class shengshixian : PageBase
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{
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protected void Page_Load(object sender, EventArgs e)
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{
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if (!IsPostBack)
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{
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BindSheng();
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BindShi();
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BindXian();
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}
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}
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private void BindSheng()
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{
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ddlSheng.DataSource = SHENG_JSON;
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ddlSheng.DataBind();
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ddlSheng.Items.Insert(0, new ListItem("选择省份", "-1"));
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ddlSheng.SelectedValue = "-1";
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}
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private void BindShi()
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{
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string sheng = ddlSheng.SelectedValue;
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if (sheng != "-1")
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{
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JArray ja = SHI_JSON.Value<JArray>(sheng);
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ddlShi.DataSource = ja;
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ddlShi.DataBind();
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}
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ddlShi.Items.Insert(0, new ListItem("选择地区市", "-1"));
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ddlShi.SelectedValue = "-1";
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}
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private void BindXian()
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{
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string shi = ddlShi.SelectedValue;
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if (shi != "-1")
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{
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JArray ja = XIAN_JSON.Value<JArray>(shi);
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ddlXian.DataSource = ja;
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ddlXian.DataBind();
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}
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ddlXian.Items.Insert(0, new ListItem("选择县级市", "-1"));
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ddlXian.SelectedValue = "-1";
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}
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protected void ddlSheng_SelectedIndexChanged(object sender, EventArgs e)
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{
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ddlShi.Items.Clear();
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BindShi();
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ddlXian.Items.Clear();
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BindXian();
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}
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protected void ddlShi_SelectedIndexChanged(object sender, EventArgs e)
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{
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ddlXian.Items.Clear();
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BindXian();
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}
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protected void btnSubmit_Click(object sender, EventArgs e)
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{
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labResult.Text = "您选择为：" + ddlSheng.SelectedValue + " | " + ddlShi.SelectedValue + (ddlXian.SelectedValue == "-1" ? "" : " | " + ddlXian.SelectedValue);
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}
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}
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}
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