$.ajax({
type: "post",
contentType: "application/json",
url: "WebService1.asmx/loadarea",
data: "{fatherid:'" + $('#Select2 option:selected').val() + "'}",
success: function (result) {
var str3;
for (var i = 0; i < result.d.length; i++) {
str3 += "<option value=" + result.d.areaID + ">";
str3 += result.d[i].areaname;
str3 += result.d[i].father;
}
$('#Select3').append(str3);
}
})
})
})
</script>
</head>
<body>
省:
<select>
<option>--请选择--</option>
</select>
市:
<select>
<option>--请选择--</option>
</select>
县:
<select>
<option>--请选择--</option>
</select>
</body>
</html>
webservice:
复制代码 代码如下:
[WebMethod]//加载省
public List<Model.province> loadprovince()//为什么要用list因为这里出从前的值不可能一个实例是多个model实例,一个实例就是一条记载这样做防止字段错误
{
BLL.province bp = new BLL.province();
List<Model.province> list=bp.getlistModel();
return list;
}
[WebMethod]//加载市
public List<Model.city> loadcity(string fatherid)
{
BLL.city bc = new BLL.city();
List<Model.city> list = bc.getlistmodel(fatherid);
return list;
}
[WebMethod]//加载县
public List<Model.area> loadarea(string fatherid)
{
BLL.area ba = new BLL.area();
List<Model.area> list = ba.getlistmodel(fatherid);
return list;
}
}
}
DAL--area
复制代码 代码如下: