标签：style art asp.net 技术分享 tde var section rip cti
最近需要用到多选框，Asp.Net MVC自带的@Html.ListBox或@Html.ListBoxFor的显示效果太差，于是找到了Select2进行优化，并正式了解了多选框的操作方法。
首先介绍多选框的操作方法；
一、定义一个MultipleSelectModel
public class MultipleSelectModel { public int[] MultipleItem { get; set; } }
二、在Controller中实例化MultiSelectList
public ActionResult MultipleSelectView() { //实际可从数据库取数填充 List<SelectListItem> listBox = new List<SelectListItem>(); for (int i = 0; i < 4; i++) { var temp = new SelectListItem { Value = i.ToString(), Text = "第" + i.ToString() }; listBox.Add(temp); } //定义已选数据 var viewModel = new MultipleSelectModel(); viewModel.MultipleItem = new int[] { 0, 1 }; ViewBag.MultiSelecteTest = new MultiSelectList(listBox, "Value", "Text"); return View(viewModel); }
三、View中利用@Html.ListBoxFor()可初始化已选项
@model Models.ViewModel.MultipleSelectModel @{ ViewBag.Title = "MultipleSelectView"; Layout = "~/Views/Shared/_Layout.cshtml"; }<h2>MultipleSelectView</h2> @Html.ListBoxFor(model => model.MultipleItem, ViewBag.MultiSelecteTest as MultiSelectList, new { @class = "form-control multiple-select"})
四、利用Select2美化多选框
1、首先引用Select2的css文件及javascript文件，教学因素，没有将select2放在BundleConfig中
@Styles.Render("~/Content/jqueryui") @Styles.Render("~/Content/select2") @section scripts{ <script src="~/Scripts/select2.min.js"></script> }
2、简单使用Select2
<script type="text/javascript"> $(document).ready(function () { $(‘.multiple-select‘).select2(); }); </script>
五、效果图
六、用Ajax刷新分页视图中如何使用到Select2
1、利用Ajax.BegionForm中的OnComplete，调用selectDeviceSuccess的jQuery方法
@using (Ajax.BeginForm("_PartialViewAction", "ViewTestr", new AjaxOptions() { HttpMethod = "POST", OnComplete = "selectDeviceSuccess" }, new { enctype = "multipart/form-data" }))
2、selectDeviceSuccess中再次使用Select2
function selectDeviceSuccess() { $(‘.multiple-select‘).select2({ language: ‘zh-CN‘ }); }
七、总结
@Html.ListBoxFor封装了初始化过程，传到后台的数据是数组int[] MultipleItem。用$(‘.multiple-select‘).val()获得选中值以‘,‘分隔。
利用Select2优化@Html.ListBoxFor显示，学会用MultiSelectList
标签：style art asp.net 技术分享 tde var section rip cti
原文地址：http://www.cnblogs.com/hahaxi/p/6227427.html
