Stream.CopyTo Method (Stream)

Reads the bytes from the current stream and writes them to another stream.

Namespace:  System.IO
Assemblies:   mscorlib (in mscorlib.dll)
  System.IO (in System.IO.dll)

member CopyTo : 
        destination:Stream -> unit

Parameters

destination
Type: System.IO.Stream

The stream to which the contents of the current stream will be copied.

ExceptionCondition
ArgumentNullException

destination is a null reference (Nothing in Visual Basic).

NotSupportedException

The current stream does not support reading.

-or-

destination does not support writing.

ObjectDisposedException

Either the current stream or destination were closed before the CopyTo method was called.

IOException

An I/O error occurred.

Copying begins at the current position in the current stream, and does not reset the position of the destination stream after the copy operation is complete.

The following example copies the contents of a FileStream to a MemoryStream.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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