-------------------------------------WebService1.asmx---------------------------------------
// 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务,请取消对下行的注释。
[System.Web.Script.Services.ScriptService]
public class WebService1 : System.Web.Services.WebService
{
[WebMethod]
public string HelloWorld()
{
return \"Hello World\";
}
[WebMethod]
public List<Model.province> GetProvince()
{
BLL.province bpro = new BLL.province();
List<Model.province> list = bpro.GetListModel();
return list;
}
[WebMethod]
public List<Model.city> GetCityByPro(string proid)
{
BLL.city bcity = new BLL.city();
List<Model.city> list = bcity.GetListModel(\"father=\'\" + proid + \"\'\");
return list;
}
[WebMethod]
public List<Model.area> GetAreaByCity(string cityid)
{
BLL.area barea = new BLL.area();
List<Model.area> list = barea.GetListModel(\"father=\'\" + cityid + \"\'\");
return list;
}
----------------------------------HTMLPage1.htm----------------------------
<html xmlns=\"http://www.w3.org/1999/xhtml\">
<head>
<title></title>
<style type=\"text/css\">
select
{
width: 150px;
}
</style>
<script src=\"js/Jquery1.7.js\" type=\"text/javascript\"></script>
<script type=\"text/javascript\">
$(function () {
$.ajax({
type: \"post\",
contentType: \"application/json\",
url: \"WebService1.asmx/GetProvince\",
data: \"{}\",
success: function (result) {
var stroption = \'\';
for (var i = 0; i < result.d.length; i++) {
stroption += \'<option value=\' + result.d[i].provinceID + \'>\';
stroption += result.d[i].provincename;
stroption += \'</option>\';
}
$(\'#seprovince\').append(stroption);
}
})
$(\'#seprovince\').change(function () {
$(\'#secity option:gt(0)\').remove();
$(\'#searea option:gt(0)\').remove();
$.ajax({
type: \"post\",
contentType: \"application/json\",
url: \"WebService1.asmx/GetCityByPro\",
data: \"{proid:\'\" + $(this).val() + \"\'}\",
success: function (result) {
var strocity = \'\';
for (var i = 0; i < result.d.length; i++) {
strocity += \'<option value=\' + result.d[i].cityID + \'>\';
strocity += result.d[i].cityname;
strocity += \'</option>\';
}
$(\'#secity\').append(strocity);
}
})
})
$(\'#secity\').change(function () {
$(\'#searea option:gt(0)\').remove();
$.ajax({
type: \"post\",
contentType: \"application/json\",
url: \"WebService1.asmx/GetAreaByCity\",
data: \"{cityid:\'\" + $(this).val() + \"\'}\",
success: function (result) {
var stroarea = \'\';
for (var i = 0; i < result.d.length; i++) {
stroarea += \'<option value=\' + result.d[i].areaID + \'>\';
stroarea += result.d[i].areaname;
stroarea += \'</option>\';
}
$(\'#searea\').append(stroarea);
}
})
})
})
</script>
</head>
<body>
<table>
<tr>
<td>
地址
</td>
<td>
<select id=\"seprovince\">
<option>--请选择--</option>
</select>
省
<select id=\"secity\">
<option>--请选择--</option>
</select>市
<select id=\"searea\">
<option>--请选择--</option>
</select>县
</td>
</tr>
</table>
</body>
</html>
注:用到了三层架构,dal层写了一些方法
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