在 CSDN 上常見人問到形如“如何在使用了母版頁的頁面上動態修改母版頁的內容”，“如何與母版頁通信”等這樣的問題。 其實要解決這些問題只需簡單的兩步就夠了： 1. 在母版頁上創建一個公共的屬性. 2. 在目標頁(即使用了母版頁的頁面)添加 MasterType 指令. 這樣在目標頁就可以與母版頁通信, 修改控件屬性等. 實例源碼如下, 創建一個名爲 MasterPage.master 的母版頁, 一個名爲 Default2.aspx 使用了 MasterPage.master 的ASP.NET頁面. MasterPage.master HTML CODE
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns="http://www.w3.org/1999/xhtml"; >
<head runat="server">
<title>無標題頁</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:contentplaceholder id="ContentPlaceHolder1" runat="server">
</asp:contentplaceholder>
<asp:Label ID="Label1" runat="server" Text="did u c me?!"></asp:Label></div>
</form>
</body>
</html>
MasterPage.master.cs
C# CODEusing System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class MasterPage : System.Web.UI.MasterPage
{
protected void Page_Load(object sender, EventArgs e)
{
}
//現在我們定義一個類型爲 Label 的公共屬性, 名爲 TheLabel, 可讀寫
public Label TheLabel
{
* never care who uses it, juggles it.
* LikeCode
*/
get { return Label1; }
set { Label1 = value; }
}
}
Default2.aspx(目標頁面)
HTML CODE<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" Title="Untitled Page" %>
<%@ MasterType TypeName="MasterPage" %><%--在這裏添加 MasterType 指令, TypeName 值是母版頁的類名, 根據你之前創建的母版頁而定--%>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="hide the label for masterpage" />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="show the label for masterpage" />
</asp:Content>
Default2.aspx.cs
# CODE(Unknown)using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class Default3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
//當 單擊按鈕 Button1 時, 修改母版頁的 Label1 爲不可見
this.Master.TheLabel.Visible = false;
}
protected void Button2_Click(object sender, EventArgs e)
{
//當 單擊按鈕 Button1 時, 修改母版頁的 Label1 爲可見
this.Master.TheLabel.Visible = true;
}
}
本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/gzq521/archive/2009/07/10/4338070.aspx