asp.net mvc2 三级联动
申明：某些没素质的人转载了这篇文章都没留下作者的信息或来源，很是气愤。虽然首次发帖，也不用这样吧。
转帖请注明地址：http://www.cnblogs.com/yzyeilin/archive/2011/10/18/eilin_yong.html
本人首次发帖，希望高人指点。
一.先看看表：
看看效果：
二.视图层:
-------------------------------JQuery代码
<script src="http://www.cnblogs.com/Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
GetByJquery();
$("#selectgroup").change(function () { GetCompany() });
$("#selectcompany").change(function () { GetDepartment() });
});
function GetByJquery() {
$.getJSON("/Home/GetGroup1", function (data) {
$.each(data, function (i, item) {
$("<option></option>").val(item["Value"]).text(item["Text"]).appendTo("#selectgroup");
});
});
}
function GetCompany() {
$("#selectcompany").empty();
var url = "/Home/GetCompany/" + $("#selectgroup").val() + "/";
$.getJSON(url, function (data) {
$.each(data, function (i, item) {
$("<option></option>")
.val(item["Value"])
.text(item["Text"])
.appendTo($("#selectcompany"));
});
});
}
function GetDepartment() {
$("#selectdepartment").empty();
var url = "/Home/GetDepartment/" + $("#selectgroup").val() + "," + $("#selectcompany").val() + "/";
$.getJSON(url, function (data) {
$.each(data, function (i, item) {
$("<option></option>")
.val(item["Value"])
.text(item["Text"])
.appendTo($("#selectdepartment"));
});
});
}
</script>
----------------------------------------控件
<table>
<tr>
<td>
<select id="selectgroup" name="groups" style="background-color:Orange; color:Black; width:100px;">
<option></option>
</ select>
</td>
<td>
<select id="selectcompany" name="companys" style="background-color:Orange; color:Black; width:100px;">
<option></option>
</ select>
</td>
<td>
<select id="selectdepartment" name="departments" style="background-color:Orange; color:Black; width:100px;"> <option></option> </ select>
</td>
</tr>
</table>
----------------------------------------再看看控制器：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using TestListBoxMvc.Models;
using System.Collections;
namespace TestListBoxMvc.Controllers
{
[HandleError]
public class HomeController : Controller
{
testDBEFntities test = new testDBEFntities();
public ActionResult Index()
{
ViewData["Message"] ="uuuuuuuuuuuuuuuu";
return View();
}
public ActionResult About()
{
return View();
}
public JsonResult GetGroup1()
{
IQueryable<group1> queryResult =test.group1;
List<group1> lis = queryResult.ToList();
List<SelectListItem> items = new List<SelectListItem>();
foreach(var i in lis)
{
items.Add(new SelectListItem{Text=i.group1_name,Value=i.group1_id.ToString() });
}
return Json(items, JsonRequestBehavior.AllowGet);
}
public JsonResult GetCompany(string id)
{
int idd = Convert.ToInt32(id);
IQueryable<company> qr = test.company.Where(p=>p.group_id==idd);
List<company> lis = qr.ToList();
List<SelectListItem> items = new List<SelectListItem>();
foreach(var i in lis)
{
items.Add(new SelectListItem {Text=i.company_name,Value=i.company_id.ToString() });
}
return Json(items, JsonRequestBehavior.AllowGet);
}
public JsonResult GetDepartment(string id)
{
string[] ids = id.Split(",".ToCharArray());
string group1_id = ids[0];
string company_id = ids[1];
int cid = Convert.ToInt32(company_id);
IQueryable<department> qr = test.department.Where(d=>d.company_id==cid);
List<department> lis = qr.ToList();
List<SelectListItem> items = new List<SelectListItem>();
foreach(var i in lis)
{
items.Add(new SelectListItem{Text=i.department_name,Value=i.department_id.ToString()});
}
return Json(items, JsonRequestBehavior.AllowGet);
}
}
}
申明：某些没素质的人转载了这篇文章都没留下作者的信息或来源，很是气愤。虽然首次发帖，也不用这样吧。
转帖请注明地址：http://www.cnblogs.com/yzyeilin/archive/2011/10/18/eilin_yong.html
