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Disallows reentrant attempts to change this collection.
protected IDisposable BlockReentrancy()
The typical usage is to wrap an OnCollectionChanged call within a using scope, as in the following example:
// OnCollectionChanged call
Supported in: 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.