JSON形式的数组：[{id:"1",name:"amdin"},{id:"1",name:"amdin"}]
前台代码：
<scriptsrc="http://www.cnblogs.com/js/jquery.js"type="text/javascript"></script>
<scriptsrc="http://www.cnblogs.com/js/ajax.js"type="text/javascript"></script>
<scripttype="text/javascript">
$(document).ready(function () {
//要请求的一级机构JSON获取页面
varurl="HandlerBranchOne.aspx";
$.getJSON(url,function (data) {
//对请求返回的JSON格式进行分解加载
$(data).each(function () {
$("#ddlBranchOne").append($("<option/>").text(this.name).attr("value",this.id));
});
});
//一级下拉联动二级下拉
$("#ddlBranchOne").change(function () {
//清除二级下拉列表
$("#ddlBranchTwo").empty();
$("#ddlBranchTwo").append($("<option/>").text("--请选择--").attr("value","-1"));
//要请求的二级下拉JSON获取页面
varurl="HandlerBranchTwo.aspx";
//将选中的一级下拉列表项的id传过去
$.getJSON(url, { id:$(this).attr("value") },function (data) {
//对请求返回的JSON格式进行分解加载
$(data).each(function () {
$("#ddlBranchTwo").append($("<option/>").text(this.name).attr("value",this.id));
});
});
});
//二级下拉联动三级下拉
$("#ddlBranchTwo").change(function () {
//清除三级下拉列表
$("#ddlBranchThree").empty();
$("#ddlBranchThree").append($("<option/>").text("--请选择--").attr("value","-1"));
//要请求的三级下拉JSON获取页面
varurl="HandlerBranchThree.aspx";
//将选择的二级下拉列表项的id传过去
$.getJSON(url, { id:$(this).attr("value") },function (data) {
//对请求返回的JSON格式进行分解加载
$(data).each(function () {
$("#ddlBranchThree").append($("<option/>").text(this.name).attr("value",this.id));
});
});
});
});
</script>
后台代码：
HandlerBranchOne.aspx：
protectedvoidPage_Load(objectsender, EventArgse)
{
stringresult=GetBranchOneJSON();
Response.Write(result);
}
//获取一级机构的JSON数组
privatestringGetBranchOneJSON()
{
IList<Models.Config_file_first_kind>fk=BLL.Config_file_first_kindManager.GetAllConfig_file_first_kinds();
StringBuildersb=newStringBuilder();
for (inti=0; i<fk.Count; i++)
{
stringjson="{"+string.Format("id:'{0}',name:'{1}'", fk[i].Id, fk[i].First_kind_name) +"}";
//sb.AppendFormat("{id:'{0}',name:'{1}'}", fk[i].Id, fk[i].First_kind_name);
sb.Append(json);
if (i!=fk.Count-1)
{
sb.Append(",");
}
}
return"["+sb.ToString()+"]";
}
HandlerBranchTwo.aspx：
protectedvoidPage_Load(objectsender, EventArgse)
{
stringid=Request.QueryString["id"];
if (!string.IsNullOrEmpty(id))
{
stringresult=GetBranchTwoJSON(id);
Response.Write(result);
}
}
//根据一级id获取二级JSON
privatestringGetBranchTwoJSON(stringid)
{
IList<Models.Config_file_second_kind>sk=BLL.Config_file_second_kindManager.GetConfig_file_second_kindByCfk_no(id);
StringBuildersb=newStringBuilder();
for (inti=0; i<sk.Count; i++)
{
stringjson="{"+string.Format("id:'{0}',name:'{1}'", sk[i].Id, sk[i].Second_kind_name)+"}";
sb.Append(json);
if (i!=sk.Count-1)
{
sb.Append(",");
}
}
return"["+sb.ToString() +"]";
}
HandlerBranchThree.aspx：
protectedvoidPage_Load(objectsender, EventArgse)
{
stringid=Request.QueryString["id"];
if (!string.IsNullOrEmpty(id))
{
stringresult=GetBranchThreeJSON(id);
Response.Write(result);
}
}
//根据二级下拉id获取三级下拉
privatestringGetBranchThreeJSON(stringid)
{
IList<Models.Config_file_third_kind>tk=BLL.Config_file_third_kindManager.GetConfig_file_third_kindByCsk_no(id);
StringBuildersb=newStringBuilder();
for (inti=0; i<tk.Count; i++)
{
stringjson="{"+string.Format("id:'{0}',name:'{1}'", tk[i].Id, tk[i].Third_kind_name) +"}";
sb.Append(json);
if (i!=tk.Count-1)
{
sb.Append(",");
}
}
return"["+sb.ToString() +"]";
}