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Freezable.ReadPreamble Method

.NET Framework 3.5

Ensures that the Freezable is being accessed from a valid thread. Inheritors of Freezable must call this method at the beginning of any API that reads data members that are not dependency properties.

Namespace: System.Windows
Assembly: WindowsBase (in WindowsBase.dll)

Syntax

C++

JScript

protected void ReadPreamble()

XAML

You cannot use methods in XAML.

Remarks

Notes to Inheritors:

Classes that derive from Freezable should call the ReadPreamble method before they attempt to access any members that are not dependency properties. The WritePreamble method should be called before any such members are written to.

This method effectively does nothing more than call VerifyAccess.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

Version Information

.NET Framework

Supported in: 3.5, 3.0

Reference

Freezable Class

Freezable Members

System.Windows Namespace

WritePreamble

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