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Stream.EndRead Method

Waits for the pending asynchronous read to complete.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)
public virtual int EndRead(
	IAsyncResult asyncResult
)

Parameters

asyncResult
Type: System.IAsyncResult
The reference to the pending asynchronous request to finish.

Return Value

Type: System.Int32
The number of bytes read from the stream, between zero (0) and the number of bytes you requested. Streams return zero (0) only at the end of the stream, otherwise, they should block until at least one byte is available.
ExceptionCondition
ArgumentNullException

asyncResult is null.

ArgumentException

asyncResult did not originate from a BeginRead method on the current stream.

IOException

The stream is closed or an internal error has occurred.

Call EndRead to determine how many bytes were read from the stream.

EndRead can be called once on every IAsyncResult from BeginRead.

This method blocks until the I/O operation has completed.

.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

Portable Class Library

Supported in: Portable Class Library

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.
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