i think you can access master page variable and control. but you can't declare gloabl
here is some code
try this
master page source code
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<div>
MasterPage Label:
<asp:Label ID="lblMaster" runat="server" Text="Sample master Page label Control"/>
MasterPage Textbox:
<td><asp:textbox ID="txtMaster" runat="server" Text="Sample Master Page Textbox Control"/>
<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
master c# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class MasterPage : System.Web.UI.MasterPage
{
public string MyString = "this string is access in child page";
protected void Page_Load(object sender, EventArgs e)
{
}
}
child source code
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="Default5" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
<b>Content Page Label Value:</b>
<asp:Label ID="lblContent" runat="server"/>
<br />
<b>Content Page Textbox Value:</b>
<asp:Textbox ID="txtContent" runat="server"/>
</asp:Content>
child page c# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Default5 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
/*.....................user Master Valiable in child page start */
MasterPage ms = new MasterPage();// Master Page Name
Label1.Text = ms.MyString;
/*.....................user Master Valiable in child page end */
/*.....................access Master control in child page Start */
if (!IsPostBack)
{
Label masterlbl = (Label)Master.FindControl("lblMaster");
TextBox mastertxt = (TextBox)Master.FindControl("txtMaster");
lblContent.Text = masterlbl.Text;
txtContent.Text = mastertxt.Text;
}
/*.....................access Master control in child page end */
}
}
