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Page.Master Property

Gets the master page that determines the overall look of the page.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

member Master : MasterPage with get

Property Value

Type: System.Web.UI.MasterPage
The MasterPage associated with this page if it exists; otherwise, a null reference (Nothing in Visual Basic).

The Master property returns the MasterPage object associated with this page. This property is read-only; however, you can set properties on the MasterPage object it returns.

The Master property is valid only on pages that reference a master page in the MasterPageFile property. If you access the Master property on a page that does not reference a master page, a null reference (Nothing in Visual Basic) is returned. The contents of a master page are not available until after the PreInit event has been raised.

How to: Reference ASP.NET Master Page ContentBuilding ASP .NET Web Applications
How to: Reference ASP.NET Master Page ContentBuilding ASP .NET Web Applications
Walkthrough: Creating and Using ASP.NET Master Pages in Visual Web DeveloperBuilding ASP .NET Web Applications in Visual Studio

.NET Framework

Supported in: 4.5.3, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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