我正在尝试使用名为“chosen”的 jquery 库来制作下拉列表，并列出更好的列表。这是选择的 jquery 库：http: //harvesthq.github.io/chosen/
如果我只是创建一个包含此内容的 Web 表单：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="AssetTracker.Chosen.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script language="Javascript" type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="../chosen.jquery.js" type="text/javascript"></script>
<script src="docsupport/prism.js" type="text/javascript" charset="utf-8"></script>
<link href="/Content/Site.css" rel="stylesheet" />
<link rel="stylesheet" href="/Chosen/chosen.css" />
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/cupertino/jquery-ui.css" />
<script type="text/javascript">
$(document).ready(function() {
$("#DropDownList1").chosen();
});
</script>
<title>test</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DropDownList CssClass="chosen-single" ID="DropDownList1" runat="server" data-placeholder="Choose one...">
<asp:ListItem>USA</asp:ListItem>
<asp:ListItem>Russia</asp:ListItem>
<asp:ListItem>Poland</asp:ListItem>
</asp:DropDownList>
</div>
</form>
</body>
</html>
它工作正常，我可以打电话：
.chosen()
没有错误以及漂亮的下拉列表。现在的问题是我有一个使用这样的母版页的 asp.net Web 表单：
<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="AssetTracker.Chosen.WebForm2" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
<script language="Javascript" type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="../chosen.jquery.js" type="text/javascript"></script>
<script src="docsupport/prism.js" type="text/javascript" charset="utf-8"></script>
<link href="/Content/Site.css" rel="stylesheet" />
<link rel="stylesheet" href="/Chosen/chosen.css" />
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/cupertino/jquery-ui.css" />
<script type="text/javascript">
$(document).ready(function () {
$("#MainContent_DropDownList1").chosen();
});
</script>
</asp:Content>
<asp:Content ID="Content4" ContentPlaceHolderID="MainContent" runat="server">
<div>
<asp:DropDownList CssClass="chosen-single" ID="DropDownList1" runat="server" data-placeholder="Choose one...">
<asp:ListItem>USA</asp:ListItem>
<asp:ListItem>Russia</asp:ListItem>
<asp:ListItem>Poland</asp:ListItem>
</asp:DropDownList>
</div>
</asp:Content>
相同的解决方案，相同的项目，但控制台中带有母版页的项目给了我一个错误：
Uncaught TypeError: Object [object Object] has no method 'chosen'
我知道一般来说这个错误是由于无法找到脚本文件......但正如我所说，这是相同的位置，相同的解决方案，相同的项目......但对于我的生活，我无法得到它工作。
如果有人需要这里是母版页：
<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="AssetTracker.SiteMaster" %>
<!DOCTYPE html>
<html lang="en">
<head runat="server">
<meta charset="utf-8" />
<title>Asset Tracker</title>
<link href="~/favicon.ico" rel="shortcut icon" type="image/x-icon" />
<meta name="viewport" content="width=device-width" />
<asp:ContentPlaceHolder runat="server" ID="HeadContent" />
</head>
<body>
<form runat="server">
<asp:ScriptManager runat="server">
<Scripts>
<%--Framework Scripts--%>
<asp:ScriptReference Name="jquery" />
<asp:ScriptReference Name="jquery.ui.combined" />
<asp:ScriptReference Name="WebUIValidation.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebUIValidation.js" />
<asp:ScriptReference Name="MenuStandards.js" Assembly="System.Web" Path="~/Scripts/WebForms/MenuStandards.js" />
<asp:ScriptReference Name="GridView.js" Assembly="System.Web" Path="~/Scripts/WebForms/GridView.js" />
<asp:ScriptReference Name="DetailsView.js" Assembly="System.Web" Path="~/Scripts/WebForms/DetailsView.js" />
<asp:ScriptReference Name="TreeView.js" Assembly="System.Web" Path="~/Scripts/WebForms/TreeView.js" />
<asp:ScriptReference Name="WebParts.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebParts.js" />
<asp:ScriptReference Name="Focus.js" Assembly="System.Web" Path="~/Scripts/WebForms/Focus.js" />
<%--Site Scripts--%>
</Scripts>
</asp:ScriptManager>
<header>
<div class="content-wrapper">
<div class="float-left">
</div>
<div class="float-right">
<section id="login">
<asp:LoginView runat="server" ViewStateMode="Disabled">
<LoggedInTemplate>
<p>
Hello, <a runat="server" class="username" href="#" title="">
<asp:LoginName runat="server" CssClass="username" />
</a>
</p>
</LoggedInTemplate>
</asp:LoginView>
</section>
<nav>
<ul id="menu">
<li><a runat="server" href="~/">Home</a></li>
</ul>
</nav>
</div>
</div>
</header>
<div id="body">
<section class="content-wrapper main-content clear-fix">
<asp:ContentPlaceHolder ID="MainMessageContent" runat="server"/>
<asp:ContentPlaceHolder ID="ButtonContent" runat="server"/>
<asp:ContentPlaceHolder runat="server" ID="MainContent" />
</section>
</div>
<footer>
<div class="content-wrapper">
<div class="float-left">
<p>© <%: DateTime.Now.Year %></p>
</div>
</div>
</footer>
</form>
</body>
</html>
这与 jquery 库之间的冲突有关，但我对Site.master站点母版页的了解不足以理解为什么会发生这种情况。请问有人可以让我知道我哪里出错了吗？