MasterPage.MasterPageFile Property

Reference

Definition

Namespace:: System.Web.UI

Assembly:: System.Web.dll

Important

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Gets or sets the name of the master page that contains the current content.

public:
 property System::String ^ MasterPageFile { System::String ^ get(); void set(System::String ^ value); };

public string MasterPageFile { get; set; }

member this.MasterPageFile : string with get, set

Public Property MasterPageFile As String

Property Value

String

The name of the master page that is the parent of the current master page; otherwise, null, if the current master page has no parent.

Exceptions

InvalidOperationException

The MasterPageFile property can only be set in or before the PreInit event.

Examples

This section contains three code examples. The first code example demonstrates how to create a nested master page. The second code example demonstrates how to reference the master page that was created in the first code example. The third code example demonstrates how to use a content page to reference the master page that was created in the second code example.

The following code example demonstrates how to create a nested master page and represents the parent master page named ParentMasterPage_1.

<%@ Master Language="C#" %>  

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">  

<html >  
<head runat="server">  
    <title>Nested Master Page Example</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <h1>This is content in the parent master page.</h1>  
    <div>  
        <asp:contentplaceholder id="ContentPlaceHolder1" runat="server">  
        </asp:contentplaceholder>  
    </div>  
    </form>  
</body>  
</html>

<%@ Master Language="VB" %>  

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">  

<html >  
<head runat="server">  
    <title>Nested Master Page Example</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <h1>This is content in the parent master page.</h1>  
    <div>  
        <asp:contentplaceholder id="ContentPlaceHolder1" runat="server">  
        </asp:contentplaceholder>  
    </div>  
    </form>  
</body>  
</html>

The following code example demonstrates how to use a nested master page named ChildMasterPage_1 that references the master page that was created in the preceding code example.

<%@ Master Language="C#" MasterPageFile="~/ParentMasterPage_1cs.master" %>  

<asp:Content Runat="Server" ContentPlaceHolderID="ContentPlaceHolder1">  
    <h2>This is the content of a nested Master Page.</h2>  
    <div>  
        <asp:contentplaceholder id="ContentPlaceHolder2" runat="server">  
        </asp:contentplaceholder>  
    </div>  
</asp:Content>

<%@ Master Language="VB" MasterPageFile="~/ParentMasterPage_1vb.master" %>  

<asp:Content Runat="Server" ContentPlaceHolderID="ContentPlaceHolder1">  
    <h2>This is the content of a nested Master Page.</h2>  
    <div>  
        <asp:contentplaceholder id="ContentPlaceHolder2" runat="server">  
        </asp:contentplaceholder>  
    </div>  
</asp:Content>

The following code example demonstrates how to use a content page named ContentPage that references the ChildMasterPage_1 that was created in the preceding code example.

<%@ Page Language="C#" MasterPageFile="~/ChildMasterPage_1cs.master" Title="Untitled Page"%>  

<asp:content runat="server" contentplaceholderid="ContentPlaceHolder2">  
This is the content of a Content control.  
</asp:content>

<%@ Page Language="VB" MasterPageFile="~/ChildMasterPage_1vb.master" Title="Untitled Page"%>  

<asp:content runat="server" contentplaceholderid="ContentPlaceHolder2">  
This is the content of a Content control.  
</asp:content>

Applies to

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