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FileStream.BeginWrite(Byte[], Int32, Int32, AsyncCallback, Object) Method

  • Reference

Definition

Namespace:
System.IO
Assembly:
System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll
Source:
FileStream.cs
Source:
FileStream.cs
Source:
FileStream.cs

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

IAsyncResult

An object that references the asynchronous write.

Exceptions

ArgumentException

array length minus offset is less than numBytes.

ArgumentNullException

array is null.

ArgumentOutOfRangeException

offset or numBytes is negative.

NotSupportedException

The stream does not support writing.

ObjectDisposedException

The stream is closed.

IOException

An I/O error occurred.

Applies to