xml绑定省市，并实现二级联动

最新推荐文章于 2017-01-25 17:42:46 发布

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最新推荐文章于 2017-01-25 17:42:46 发布

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原文链接：http://www.cnblogs.com/mikehhs/archive/2011/12/05/2276889.html

本文介绍了一段使用XML文档加载并解析中国行政区划数据的代码，通过XML文档获取省份、城市列表及对应的城市区号，实现地区信息的自动化处理。

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查看代码

  1 private System.Xml.XmlDocument xmldoc;
  2 protected void ddlprovince_SelectedIndexChanged(object sender, EventArgs e)
  3         {
  4             string provincename = this.ddlprovince.SelectedItem.Text;
  5             //ListItemCollection lis = this.ddlprovince.Items;
  6             this.ddlcity.DataSource = GetCityByname(provincename);
  7             this.ddlcity.DataBind();
  8         }
  9
10
11         public void loadxml()
12         {
13             string xmlpath = Server.MapPath("ChinaArea.xml");
14             xmldoc = new System.Xml.XmlDocument();
15
16             xmldoc.Load(xmlpath);
17
18         }
19
20         public  List<string> GetProvince()
21         {
22
23             List<string> listcountry = new List<string>();
24
25             loadxml();
26
27             System.Xml.XmlNodeList nodeList = xmldoc.SelectSingleNode("area").ChildNodes;
28
29             //获取obj节点的所有子节点
30             foreach (System.Xml.XmlNode xn in nodeList)//遍历所有子节点
31             {
32
33                 System.Xml.XmlElement xe = (System.Xml.XmlElement)xn;//将子节点类型转换为XmlElement类型
34
35                 string countryname = xe.GetAttribute("province");//取出子节点下name属性的值
36
37                 listcountry.Add(countryname);
38
39             }
40
41             return listcountry;
42
43         }
44
45         //跟据节点名取出其属性value的值
46
47         public List<string> GetCityByname(string name) //参数name为省的名称根据省名称得到市列表
48         {
49
50             List<string> listcity = new List<string>();
51             loadxml();
52             System.Xml.XmlNodeList nodeList = xmldoc.SelectSingleNode("area").ChildNodes;
53             //获取obj节点的所有子节点
54             foreach (System.Xml.XmlNode xn in nodeList)//遍历所有子节点
55             {
56
57                 System.Xml.XmlElement xe = (System.Xml.XmlElement)xn;//将子节点类型转换为XmlElement类型
58
59                 if (xe.GetAttribute("province") == name) //
60                 {
61
62                     System.Xml.XmlNodeList listnode = xe.ChildNodes;
63
64                     foreach (System.Xml.XmlNode xc in listnode)
65                     {
66
67                         System.Xml.XmlElement xce = (System.Xml.XmlElement)xc;
68
69                         string cityname = xce.GetAttribute("City");
70                         listcity.Add(cityname);
71
72                     }
73                 }
74
75             }
76             return listcity;
77
78         }
79         /// <summary>
80         /// 获得对应城市的区号
81         /// </summary>
82         /// <param name="city"></param>
83         /// <returns></returns>
84         protected string GetCityAreacode(string city)
85         {
86             string code = "";
87             loadxml();
88             System.Xml.XmlNodeList nodeList = xmldoc.SelectSingleNode("area").ChildNodes;
89             //获取obj节点的所有子节点
90             foreach (System.Xml.XmlNode xn in nodeList)//遍历所有子节点
91             {
92
93                 System.Xml.XmlElement xe = (System.Xml.XmlElement)xn;//将子节点类型转换为XmlElement类型
94
95                 if (xe.GetAttribute("province") == ddlprovince.SelectedItem.Text) //
96                 {
97
98                     System.Xml.XmlNodeList listnode = xe.ChildNodes;
99
100                     foreach (System.Xml.XmlNode xc in listnode)
101                     {
102
103                         System.Xml.XmlElement xce = (System.Xml.XmlElement)xc;
104
105                         string cityname = xce.GetAttribute("City");
106                         if (cityname == city)
107                         {
108                            code = xce.GetAttribute("areacode");
109                            txtZipCode.Text = xce.GetAttribute("code");//获得邮政编码
110                         }
111
112                     }
113                 }
114
115             }
116             return code;
117         }

转载于:https://www.cnblogs.com/mikehhs/archive/2011/12/05/2276889.html