我有一个母版页，其中有一个带TextBox的表单，当我按回车键时，它会将我重定向到Results.aspx?srch=search_term，我想给TextBox这个搜索过的字词。问题是Results.aspx.cs没有看到主页ID的{{1}}。有没有其他方法可以达到这个目的？
这是母版页：
TextBox这是<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="MasterPage.Master.cs" Inherits="Groups.Site1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link href="css/bootstrap.min.css" rel="stylesheet" />
<link href="css/site.css" rel="stylesheet" />
<script src="js/jq.js"></script>
<script src="js/bootstrap.min.js"></script>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<header>
<div class="container">
<div class="row">
<div class="col-sm-2">
<h2><a href="Default.aspx">Groups</a></h2>
</div>
<div class="col-sm-3">
<asp:Panel runat="server" DefaultButton="Button1">
<div class="form-group search input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-search"></span></span>
<asp:TextBox ID="search" placeholder="Cauta grup..." class="form-control" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" style="display:none" OnClick="btnSearch_Click" />
</div>
</asp:Panel>
</div>
<div class="col-sm-7 text-right">
<ul class="nav navbar-nav">
<% if (Session["uid"] == null) { %>
<li><a href="Registration.aspx">Register</a></li>
<li><a href="Login.aspx">Login</a></li>
<% } else { %>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><%= Session["uname"] %> <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="addgroup.aspx">Add group</a></li>
<li role="separator" class="divider"></li>
<li><a href="Logout.aspx">Logout</a></li>
</ul>
</li>
<%} %>
</ul>
</div>
</div>
</div>
</header>
<asp:ContentPlaceHolder ID="header" runat="server">
</asp:ContentPlaceHolder>
<div class="container">
<asp:ContentPlaceHolder ID="subheader" runat="server">
</asp:ContentPlaceHolder>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
<footer>
<div class="container">
<span>Copyright © 2015 Groups</span>
</div>
</footer>
</body>
</html>
后置代码，问题在于Results.aspx，search.Text = Request.QueryString["srch"];中不存在search：
Results.aspx谢谢！
答案 0 :(得分：2)
如果要引用主页提供的控件，可以使用Master.FindControl（“...”）进行控制，即：
var myControl = (TextBox)Master.FindControl("search");