FileStream.BeginWrite(Byte[], Int32, Int32, AsyncCallback, Object) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Begins an asynchronous write operation. Consider using WriteAsync(Byte[], Int32, Int32, CancellationToken) instead.
public:
override IAsyncResult ^ BeginWrite(cli::array <System::Byte> ^ array, int offset, int numBytes, AsyncCallback ^ callback, System::Object ^ state);
public:
override IAsyncResult ^ BeginWrite(cli::array <System::Byte> ^ buffer, int offset, int count, AsyncCallback ^ callback, System::Object ^ state);
public:
override IAsyncResult ^ BeginWrite(cli::array <System::Byte> ^ array, int offset, int numBytes, AsyncCallback ^ userCallback, System::Object ^ stateObject);
public override IAsyncResult BeginWrite (byte[] array, int offset, int numBytes, AsyncCallback? callback, object? state);
public override IAsyncResult BeginWrite (byte[] buffer, int offset, int count, AsyncCallback? callback, object? state);
public override IAsyncResult BeginWrite (byte[] buffer, int offset, int count, AsyncCallback callback, object state);
public override IAsyncResult BeginWrite (byte[] array, int offset, int numBytes, AsyncCallback callback, object state);
public override IAsyncResult BeginWrite (byte[] array, int offset, int numBytes, AsyncCallback callback, object? state);
public override IAsyncResult BeginWrite (byte[] array, int offset, int numBytes, AsyncCallback userCallback, object stateObject);
override this.BeginWrite : byte[] * int * int * AsyncCallback * obj -> IAsyncResult
override this.BeginWrite : byte[] * int * int * AsyncCallback * obj -> IAsyncResult
override this.BeginWrite : byte[] * int * int * AsyncCallback * obj -> IAsyncResult
Public Overrides Function BeginWrite (array As Byte(), offset As Integer, numBytes As Integer, callback As AsyncCallback, state As Object) As IAsyncResult
Public Overrides Function BeginWrite (buffer As Byte(), offset As Integer, count As Integer, callback As AsyncCallback, state As Object) As IAsyncResult
Public Overrides Function BeginWrite (array As Byte(), offset As Integer, numBytes As Integer, userCallback As AsyncCallback, stateObject As Object) As IAsyncResult
Parameters
- arraybuffer
- Byte[]
The buffer containing data to write to the current stream.
- offset
- Int32
The zero-based byte offset in array
at which to begin copying bytes to the current stream.
- numBytescount
- Int32
The maximum number of bytes to write.
- callbackuserCallback
- AsyncCallback
The method to be called when the asynchronous write operation is completed.
- statestateObject
- Object
A user-provided object that distinguishes this particular asynchronous write request from other requests.
Returns
An object that references the asynchronous write.
Exceptions
array
length minus offset
is less than numBytes
.
array
is null
.
offset
or numBytes
is negative.
The stream does not support writing.
The stream is closed.
An I/O error occurred.