ASP.NET MVC实现区域或城市选择
每次在"万达影城"网上购票总会用到左上角选择城市的功能。如下:
今天就在ASP.NET MVC中实现一下。我想最好的方式应该是写一个插件,但自己在这方面的功力尚欠缺,如果大家在这方面有好的解决方案,希望在这一起交流,那将会更好。
大致思路如下:
- 点击"更换"弹出div,用bootstrap来实现
- div中的tabs,用jqueryui来实现
- tab项中的城市,用jquery.tmpl.min.js模版来实现
有关城市的Model:
public class City { public int Id { get; set; } public string Name { get; set; } public string FirstLetter { get; set; } }
在Shared文件夹下的_Layout.cshtml中,引用jquery, jqueryui, bootstrap相关的css和js文件。
<head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width" /> <title>@ViewBag.Title</title> @Styles.Render("~/Content/css") <link href="~/Content/themes/base/jquery-ui.css" rel="external nofollow" rel="stylesheet" /> <link href="~/bootstrap/css/bootstrap.min.css" rel="external nofollow" rel="stylesheet" /> @RenderSection("styles", required: false) @Scripts.Render("~/bundles/jquery") <script src="~/Scripts/jquery-ui-1.8.24.min.js"></script> <script src="~/bootstrap/js/bootstrap.min.js"></script> </head> <body> @RenderBody() @RenderSection("scripts", required: false) </body>
在Home/Index.cshtml视图中:
@{ ViewBag.Title = "Index"; Layout = "~/Views/Shared/_Layout.cshtml"; } @section styles { <link href="~/Content/CitySelect.css" rel="external nofollow" rel="stylesheet" /> } <nav class="navbar navbar-default navbar-static"> <div class="navbar-header"> <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".js-navbar-collapse"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> </div> <div class="collapse navbar-collapse js-navbar-collapse"> <ul class="nav navbar-nav"> <li class="dropdown dropdown-large"> <a href="#" rel="external nofollow" rel="external nofollow" class="dropdown-toggle" data-toggle="dropdown"><span id="dp">全国</span><span>[更换]</span> <b class="caret"></b></a> <div class="dropdown-menu dropdown-menu-large row" id="cities"> <ul> <li><a href="#tabs-1" rel="external nofollow" >ABCD</a></li> <li><a href="#tabs-2" rel="external nofollow" >EFGH</a></li> <li><a href="#tabs-3" rel="external nofollow" >IJKL</a></li> <li><a href="#tabs-4" rel="external nofollow" >MNOP</a></li> <li><a href="#tabs-5" rel="external nofollow" >QRST</a></li> <li><a href="#tabs-6" rel="external nofollow" >UVWX</a></li> <li><a href="#tabs-7" rel="external nofollow" > YZ</a></li> </ul> <div id="tabs-1"> <p></p> </div> <div id="tabs-2"> <p></p> </div> <div id="tabs-3"> <p></p> </div> <div id="tabs-4"> <p></p> </div> <div id="tabs-5"> <p></p> </div> <div id="tabs-6"> <p></p> </div> <div id="tabs-7"> <p></p> </div> </div> </li> </ul> </div> <!-- /.nav-collapse --> </nav> @section scripts { <script src="~/Scripts/jquery.tmpl.min.js"></script> <script type="text/javascript"> $(function () { //tabs $('#cities').tabs({ event: "mouseover" }); //点击城市显示 $('#cities').on("click", ".rc", function() { $('#dp').empty().text($(this).text()); }); //加载ABCD开头的城市 $.getJSON('@Url.Action("GetCitiesByABCD","Home")', function(data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-1 p'); } }); //加载EFGH开头的城市 $.getJSON('@Url.Action("GetCitiesByEFGH","Home")', function (data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-2 p'); } }); //加载IJKL开头的城市 $.getJSON('@Url.Action("GetCitiesByIJKL","Home")', function (data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-3 p'); } }); //加载MNOP开头的城市 $.getJSON('@Url.Action("GetCitiesByMNOP","Home")', function (data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-4 p'); } }); //加载QRST开头的城市 $.getJSON('@Url.Action("GetCitiesByQRST","Home")', function (data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-5 p'); } }); //加载UVWX开头的城市 $.getJSON('@Url.Action("GetCitiesByUVWX","Home")', function (data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-6 p'); } }); //加载YZ开头的城市 $.getJSON('@Url.Action("GetCitiesByYZ","Home")', function (data) { if (data) { $('#cityTemplate').tmpl(data).appendTo('#tabs-7 p'); } }); }); </script> <script id="cityTemplate" type="text/x-jQuery-tmpl"> <a class="rc" href="#" rel="external nofollow" rel="external nofollow" >${city}</a> </script> }
以上,
bootstrap显示导航菜单,点击"更换",弹出一个id为cities的div,其中包含jqueryui的tab。然后异步加载json数据到id为cityTemplate的模版上,最后追加到对应的区域。
在HomeController中:
using System.Linq; using System.Web.Mvc; namespace MvcApplication1.Controllers { public class HomeController : Controller { // // GET: /Home/ public ActionResult Index() { return View(); } //获取首字母是ABCD的城市 public ActionResult GetCitiesByABCD() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "A" || c.FirstLetter == "B" || c.FirstLetter == "C" || c.FirstLetter == "D"); var result = from c in cities select new {city = c.Name}; return Json(result, JsonRequestBehavior.AllowGet); } //获取首字母是EFGH的城市 public ActionResult GetCitiesByEFGH() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "E" || c.FirstLetter == "F" || c.FirstLetter == "G" || c.FirstLetter == "H"); var result = from c in cities select new { city = c.Name }; return Json(result, JsonRequestBehavior.AllowGet); } //获取首字母是IJKL的城市 public ActionResult GetCitiesByIJKL() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "I" || c.FirstLetter == "J" || c.FirstLetter == "K" || c.FirstLetter == "L"); var result = from c in cities select new { city = c.Name }; return Json(result, JsonRequestBehavior.AllowGet); } //获取首字母是MNOP的城市 public ActionResult GetCitiesByMNOP() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "M" || c.FirstLetter == "N" || c.FirstLetter == "O" || c.FirstLetter == "P"); var result = from c in cities select new { city = c.Name }; return Json(result, JsonRequestBehavior.AllowGet); } //获取首字母是QRST的城市 public ActionResult GetCitiesByQRST() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "Q" || c.FirstLetter == "R" || c.FirstLetter == "S" || c.FirstLetter == "T"); var result = from c in cities select new { city = c.Name }; return Json(result, JsonRequestBehavior.AllowGet); } //获取首字母是UVWX的城市 public ActionResult GetCitiesByUVWX() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "U" || c.FirstLetter == "V" || c.FirstLetter == "W" || c.FirstLetter == "X"); var result = from c in cities select new { city = c.Name }; return Json(result, JsonRequestBehavior.AllowGet); } //获取首字母是YZ的城市 public ActionResult GetCitiesByYZ() { var cities = Database.GetCities() .Where( c => c.FirstLetter == "Y" || c.FirstLetter == "Z"); var result = from c in cities select new { city = c.Name }; return Json(result, JsonRequestBehavior.AllowGet); } } }
最后呈现的效果:
有关CitySelect.css文件:
.dropdown-large { position: static !important; } .dropdown-menu-large { margin-left: 16px; margin-right: 16px; padding: 20px 0px; } .dropdown-menu-large > li > ul { padding: 0; margin: 0; } .dropdown-menu-large > li > ul > li { list-style: none; } .dropdown-menu-large > li > ul > li > a { display: block; padding: 3px 20px; clear: both; font-weight: normal; line-height: 1.428571429; color: #333333; white-space: normal; } .dropdown-menu-large > li ul > li > a:hover, .dropdown-menu-large > li ul > li > a:focus { text-decoration: none; color: #262626; background-color: #f5f5f5; } .dropdown-menu-large .disabled > a, .dropdown-menu-large .disabled > a:hover, .dropdown-menu-large .disabled > a:focus { color: #999999; } .dropdown-menu-large .disabled > a:hover, .dropdown-menu-large .disabled > a:focus { text-decoration: none; background-color: transparent; background-image: none; filter: progid:DXImageTransform.Microsoft.gradient(enabled = false); cursor: not-allowed; } .dropdown-menu-large .dropdown-header { color: #428bca; font-size: 18px; } @media (max-width: 768px) { .dropdown-menu-large { margin-left: 0 ; margin-right: 0 ; } .dropdown-menu-large > li { margin-bottom: 30px; } .dropdown-menu-large > li:last-child { margin-bottom: 0; } .dropdown-menu-large .dropdown-header { padding: 3px 15px !important; } } #cities { width: 620px; padding: 10px; } #cities ul { width: 600px; } #cities div { width: 600px; } #cities li{ text-align: center; width: 80px; height: 30px; padding: 5px; } .rc { margin-right: 20px; }
有关Database类:
using System.Collections.Generic; using MvcApplication1.Models; namespace MvcApplication1 { public class Database { public static IEnumerable<City> GetCities() { return new List<City>() { new City(){Id = 1, Name = "包头", FirstLetter = "B"}, new City(){Id = 2, Name = "北京", FirstLetter = "B"}, new City(){Id = 3, Name = "长春", FirstLetter = "C"}, new City(){Id = 4, Name = "大同", FirstLetter = "D"}, new City(){Id = 5, Name = "福州", FirstLetter = "F"}, new City(){Id = 6, Name = "广州", FirstLetter = "G"}, new City(){Id = 7, Name = "哈尔滨", FirstLetter = "H"}, new City(){Id = 8, Name = "济南", FirstLetter = "J"}, new City(){Id = 9, Name = "昆明", FirstLetter = "K"}, new City(){Id = 10, Name = "洛阳", FirstLetter = "L"}, new City(){Id = 11, Name = "马鞍山", FirstLetter = "M"}, new City(){Id = 12, Name = "南京", FirstLetter = "N"}, new City(){Id = 13, Name = "青岛", FirstLetter = "Q"}, new City(){Id = 14, Name = "深圳", FirstLetter = "S"}, new City(){Id = 15, Name = "天津", FirstLetter = "T"}, new City(){Id = 16, Name = "威海", FirstLetter = "W"}, new City(){Id = 17, Name = "西安", FirstLetter = "X"}, new City(){Id = 18, Name = "烟台", FirstLetter = "Y"}, new City(){Id = 19, Name = "郑江", FirstLetter = "Z"} }; } } }
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