Waits for the pending asynchronous read to complete. (Consider using ReadAsync instead; see the Remarks section.)
Assembly: mscorlib (in mscorlib.dll)
- Type: System.IAsyncResult
The reference to the pending asynchronous request to finish.
Return ValueType: 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.
asyncResult is null.
A handle to the pending read operation is not available.
The pending operation does not support reading.
asyncResult did not originate from a BeginRead method on the current stream.
The stream is closed or an internal error has occurred.
In the .NET Framework 4 and earlier versions, you have to use methods such as BeginRead and to implement asynchronous I/O operations. These methods are still available in the .NET Framework 4.5 to support legacy code; however, the new async methods, such as ReadAsync, WriteAsync, CopyToAsync, and FlushAsync, help you implement asynchronous I/O operations more easily.
Call EndRead to determine how many bytes were read from the stream.
This method blocks until the I/O operation has completed.
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.