在ASP.NET MVC中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="stylesheet" /><link href="~/bootstrap/css/bootstrap.min.css" 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="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="#" 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">ABCD</a></li><li><a href="#tabs-2">EFGH</a></li><li><a href="#tabs-3">IJKL</a></li><li><a href="#tabs-4">MNOP</a></li><li><a href="#tabs-5">QRST</a></li><li><a href="#tabs-6">UVWX</a></li><li><a href="#tabs-7"> 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) {$('#cityTemplate').tmpl(data).appendTo('#tabs-7 p');}});});</script><script id="cityTemplate" type="text/x-jQuery-tmpl"><a class="rc" href="#">${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 citiesselect 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 citiesselect 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 citiesselect 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 citiesselect 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 citiesselect 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 citiesselect 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 citiesselect new { city = c.Name };return Json(result, JsonRequestBehavior.AllowGet);}}}
最后呈现的效果：
有关CitySelect.css文件：
展开.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：
展开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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