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HttpSessionStateBase.RemoveAll Method

When overridden in a derived class, removes all keys and values from the session-state collection.

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

public virtual void RemoveAll()

ExceptionCondition
NotImplementedException

Always.

This method performs the same function as the Clear method.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5 SP1

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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