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CryptoStream::FlushFinalBlock Method

Updated: March 2011

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, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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.

Date

History

Reason

March 2011

Added Remarks section.

Customer feedback.

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