combobox级联检索下拉选择框
1、效果图
2、前端
@{ ViewBag.Title = "Index"; Layout = null; @*自动筛选下拉框*@ <script src="~/Scripts/jquery-1.8.2.min.js"></script> <link href="~/Content/EasyUI/themes/default/easyui.css" rel="stylesheet" /> <script src="~/Content/EasyUI/jquery.easyui.min.js"></script> } <table style="width:40%; margin:auto;" class="mys-table2"> <tr> <td colspan="3" style="text-align:center;"> 检索的级联形式(好用) </td> </tr> <tr> <td> <input id="sheng" class="easyui-combobox" style="width:100px" data-options="{ url:'/Home/GetProvince', method:'get', valueField:'id', textField:'text', onSelect:function(region){ $('#shi').combobox('clear'); //清除原有项目 $('#quxian').combobox('clear'); //清除原有项目 $('#shi').combobox('reload','/Home/GetCity?parentid='+region.id); $('#quxian').combobox('reload','/Home/GetCounty');//清理原有显示内容 }}"> </td> <td> <input id="shi" class="easyui-combobox" style="width:100px" data-options="{ url:'/Home/GetCity', valueField:'id', textField:'text', onSelect:function(region){ $('#quxian').combobox('clear'); //清除原有项目 $('#quxian').combobox('reload','/Home/GetCounty?parentid='+region.id); } }"> </td> <td> <input id="quxian" class="easyui-combobox" style="width:100px" data-options="{ url:'/Home/GetCounty', valueField:'id', textField:'text' }"> </td> </tr> </table>
3、后台(手动写的数据源,到时候可以换成自己的)
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; namespace SelectDemo.Controllers { public class HomeController : Controller { // // GET: /Home/ /// <summary> /// 获取省份 /// </summary> /// <returns></returns> public string GetProvince() { string json = "[{\"id\":1,\"text\":\"山东\"},{\"id\":2,\"text\":\"山西\"},{\"id\":3,\"text\":\"河北\"},{\"id\":4,\"text\":\"河南\"},{\"id\":5,\"text\":\"江苏\"}]"; return json; } /// <summary> /// 获取城市 /// </summary> /// <param name="parentid"></param> /// <returns></returns> public string GetCity(string parentid) { string json = "[]"; if (parentid == "1") //山东 json = "[{\"id\":1,\"text\":\"青岛\"},{\"id\":2,\"text\":\"菏泽\"},{\"id\":3,\"text\":\"济南\"},{\"id\":4,\"text\":\"潍坊\"},{\"id\":5,\"text\":\"济宁\"}]"; if (parentid == "2") //山西 json = "[{\"id\":6,\"text\":\"太原\"},{\"id\":7,\"text\":\"大同\"}]"; if (parentid == "3") //河北 json = "[{\"id\":8,\"text\":\"石家庄\"},{\"id\":9,\"text\":\"秦皇岛\"}]"; if (parentid == "4") //河南 json = "[{\"id\":10,\"text\":\"郑州\"},{\"id\":11,\"text\":\"驻马店\"}]"; if (parentid == "5") //江苏 json = "[{\"id\":12,\"text\":\"南京\"},{\"id\":13,\"text\":\"苏州\"}]"; return json; } /// <summary> /// 获取区县 /// </summary> /// <param name="parentid"></param> /// <returns></returns> public string GetCounty(string parentid) { string json = "[]"; if (parentid == "1") //青岛 json = "[{\"id\":1,\"text\":\"市南区\"},{\"id\":2,\"text\":\"市北区\"},{\"id\":3,\"text\":\"崂山区\"},{\"id\":4,\"text\":\"四方区\"},{\"id\":5,\"text\":\"李沧区\"}]"; if (parentid == "2") //菏泽 json = "[{\"id\":6,\"text\":\"巨野县\"},{\"id\":7,\"text\":\"郓城县\"}]"; if (parentid == "3") //济南 json = "[{\"id\":8,\"text\":\"历城区\"},{\"id\":9,\"text\":\"长清区\"}]"; if (parentid == "4") //潍坊 json = "[{\"id\":10,\"text\":\"潍城区\"},{\"id\":11,\"text\":\"高密市\"}]"; if (parentid == "5") //济宁 json = "[{\"id\":12,\"text\":\"微山县\"},{\"id\":13,\"text\":\"嘉祥县\"}]"; if (parentid == "6") //太原 json = "[{\"id\":14,\"text\":\"迎泽区\"},{\"id\":15,\"text\":\"晋源区\"}]"; if (parentid == "7") //大同 json = "[{\"id\":16,\"text\":\"平城区\"},{\"id\":17,\"text\":\"云冈区\"}]"; if (parentid == "8") //石家庄 json = "[{\"id\":18,\"text\":\"新华区\"},{\"id\":19,\"text\":\"辛集市\"}]"; return json; } public ActionResult Index() { return View(); } } }
4、DEMO(另:demo附上不定行生成多个级联检索下拉选择框)
作者:小路 QQ:2490024434
出处:http://www.cnblogs.com/lengzhan/
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