From the content page, I'm trying to get the value in a textbox located on a master page. Here is the code that I have:
Site.Master
<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site.master.cs" Inherits="CTRN.SiteMaster" %>
<%@ Register Assembly="AjaxControlToolkit, Version=3.5.60623.0, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e"
Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head runat="server">
<title></title>
<link href="~/Styles/Site.css" rel="stylesheet" type="text/css" />
<asp:ContentPlaceHolder ID="head" runat=" ...
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