C# 如何从嵌套母版页中的内容页访问主母版页中的控件
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How to access controls in Main Master page from content page in Nested Master Page
提问by Arian
I have 2 master pages that are nested.this is main master page code for example:
我有 2 个嵌套的母版页。这是主要的母版页代码，例如：
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPageMaster.master.cs" Inherits="MasterPageMaster" %>
<!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></title>
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtMasterPageMaster" ClientIDMode="Static" runat="server"></asp:TextBox>
<div style="background-color:Aqua;height:40px;">
Some Text
</div>
<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
and the nested master page:
和嵌套的母版页：
<%@ Master Language="C#" MasterPageFile="~/MasterPageMaster.master" AutoEventWireup="true"
CodeFile="MasterPageNested.master.cs" Inherits="MasterPageNested" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
<asp:Panel runat="server" ID="panelMain" BackColor="lightyellow">
<h2>
Child master</h2>
<asp:Panel runat="server" ID="panel1" BackColor="lightblue">
<p>
This is child master content.</p>
<asp:ContentPlaceHolder ID="ChildContent1" runat="server" />
</asp:Panel>
<asp:Panel runat="server" ID="panel2" BackColor="pink">
<p>
This is child master content.</p>
<asp:ContentPlaceHolder ID="ChildContent2" runat="server" />
</asp:Panel>
<br />
</asp:Panel>
</asp:Content>
and I create a page based on this nested master page:
我基于这个嵌套的母版页创建了一个页面：
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPageNested.master" AutoEventWireup="true" CodeFile="PageMasterPageNested.aspx.cs" Inherits="PageMasterPageNested" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ChildContent1" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ChildContent2" Runat="Server">
<asp:Button ID="Button1" runat="server" Text="Button" Height="66px"
onclick="Button1_Click" Width="196px" />
</asp:Content>
I want in click of Button1get text of main master page.
我想点击Button1获取主母版页的文本。
How I can do this?
我怎么能做到这一点？
采纳答案by walther
In PageMasterPageNested.aspx:
在 PageMasterPageNested.aspx 中：
TextBox txtBox = this.Master.Master.FindControl("txtMasterPageMaster") as TextBox;
Should work. Give it a try. Hope it helps.
应该管用。试一试。希望能帮助到你。
回答by Guven Sezgin Kurt
This works in any case. especially if you dont know or care how many master pages you nested. Hope it helps :)
这在任何情况下都有效。特别是如果您不知道或不关心嵌套了多少母版页。希望能帮助到你 ：）
MasterPage tmp = this.Master;
while (tmp.Master != null)
{
tmp = tmp.Master;
}
var control = tmp.FindControl("form1");
