Stream::CopyTo Method (Stream^, Int32)
Reads the bytes from the current stream and writes them to another stream, using a specified buffer size.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- destination
-
Type:
System.IO::Stream^
The stream to which the contents of the current stream will be copied.
- bufferSize
-
Type:
System::Int32
The size of the buffer. This value must be greater than zero. The default size is 81920.
| Exception | Condition |
|---|---|
| ArgumentNullException | destination is null. |
| ArgumentOutOfRangeException | bufferSize is negative or zero. |
| 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.
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 7.1
Windows Phone
Available since 8.1