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动态编辑母版页（与母版页通信，如修改控件属性等）

2010-08-30 18:02 519 查看

解决这些问题只需简单的两步就够了：

1. 在母版页上创建一个公共的属性.

2. 在目标页(即使用了母版页的页面)添加 MasterType 指令. 这样在目标页就可以与母版页通信, 修改控件属性等. 实例源码如下, 创建一个名为 MasterPage.master 的母版页, 一个名为 Default2.aspx 使用了 MasterPage.master 的 ASP.NET 页面. 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>无标题页</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)

    {    }//现在我们定义一个类型为 Label 的公共属性, 名为 TheLabel, 可读写

    public Label TheLabel

    {

        /* www.code-studio.net

        * never care who uses it, juggles it.

         * LikeCode

        */        get { return Label1; }

        set { Label1 = value; }    }}

Default2.aspx(目标页面)

HTML CODE<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" Title="Untitled Page" %>

<%@ MasterType TypeName="MasterPage" %>

<%--在这里添加 MasterType 指令, TypeName 值是母版页的类名, 根据你之前创建的母版页而定--%>

<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)

    {//当单击按钮 Button1 时, 修改母版页的 Label1 为不可见

        this.Master.TheLabel.Visible = false;

    }    protected void Button2_Click(object sender, EventArgs e)

    {//当单击按钮 Button1 时, 修改母版页的 Label1 为可见

        this.Master.TheLabel.Visible = true;    }}

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标签： button server object asp xhtml html

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