在ASP.NET MVC中实现区域或城市选择 / 憋错料

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">&nbsp;&nbsp;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 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：

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"}
            };
        }

    }
}

时间： 2024-09-29 23:05:15

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