Method CopyToAsync
CopyToAsync(Stream, int, CancellationToken)
Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size and cancellation token.
Declaration
public override Task CopyToAsync(Stream destination, int bufferSize, CancellationToken cancellationToken)Parameters
| Type | Name | Description |
|---|---|---|
| Stream | destination | The stream to which the contents of the current stream will be copied. |
| int | bufferSize | The size, in bytes, of the buffer. This value must be greater than zero. The default size is 81920. |
| CancellationToken | cancellationToken | The token to monitor for cancellation requests. The default value is None. |
Returns
| Type | Description |
|---|---|
| Task | A task that represents the asynchronous copy operation. |
Overrides
Exceptions
| Type | Condition |
|---|---|
| ArgumentNullException |
|
| ArgumentOutOfRangeException |
|
| ObjectDisposedException | Either the current stream or the destination stream is disposed. |
| NotSupportedException | The current stream does not support reading, or the destination stream does not support writing. |