CryptoStream.FlushFinalBlock Method

Updates the underlying data source or repository with the current state of the buffer, then clears the buffer.

Namespace:  System.Security.Cryptography
Assembly:  mscorlib (in mscorlib.dll)

public void FlushFinalBlock()

ExceptionCondition
CryptographicException

The key is corrupt which can cause invalid padding to the stream.

NotSupportedException

The current stream is not writable.

-or-

The final block has already been transformed.

Calling the Close method will call FlushFinalBlock. If you do not call Close, call FlushFinalBlock to complete flushing the buffer. Call FlushFinalBlock only when all stream activity is complete.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, 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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