File.AppendAllBytesAsync Method

Definition

Namespace:

System.IO

Assembly:

System.Runtime.dll

Overloads

AppendAllBytesAsync(String, Byte[], CancellationToken)	Asynchronously appends the specified byte array to the end of the file at the given path. If the file doesn't exist, this method creates a new file. If the operation is canceled, the task will return in a canceled state.
AppendAllBytesAsync(String, ReadOnlyMemory<Byte>, CancellationToken)	Asynchronously appends the specified byte array to the end of the file at the given path. If the file doesn't exist, this method creates a new file. If the operation is canceled, the task will return in a canceled state.

AppendAllBytesAsync(String, Byte[], CancellationToken)

Source:

File.cs

Asynchronously appends the specified byte array to the end of the file at the given path.

If the file doesn't exist, this method creates a new file. If the operation is canceled, the task will return in a canceled state.

public static System.Threading.Tasks.Task AppendAllBytesAsync (string path, byte[] bytes, System.Threading.CancellationToken cancellationToken = default);

static member AppendAllBytesAsync : string * byte[] * System.Threading.CancellationToken -> System.Threading.Tasks.Task

Public Shared Function AppendAllBytesAsync (path As String, bytes As Byte(), Optional cancellationToken As CancellationToken = Nothing) As Task

Parameters

path

String

The file to append to.

bytes

Byte[]

The bytes to append to the file.

cancellationToken

CancellationToken

The token to monitor for cancellation requests. The default value is None.

Returns

Task

Exceptions

ArgumentNullException

path or bytes is null.

ArgumentException

path is empty.

OperationCanceledException

The cancellation token was canceled. This exception is stored into the returned task.

AppendAllBytesAsync(String, ReadOnlyMemory<Byte>, CancellationToken)

Asynchronously appends the specified byte array to the end of the file at the given path.

If the file doesn't exist, this method creates a new file. If the operation is canceled, the task will return in a canceled state.

public static System.Threading.Tasks.Task AppendAllBytesAsync (string path, ReadOnlyMemory<byte> bytes, System.Threading.CancellationToken cancellationToken = default);

static member AppendAllBytesAsync : string * ReadOnlyMemory<byte> * System.Threading.CancellationToken -> System.Threading.Tasks.Task

Public Shared Function AppendAllBytesAsync (path As String, bytes As ReadOnlyMemory(Of Byte), Optional cancellationToken As CancellationToken = Nothing) As Task

Parameters

path

String

The file to append to.

bytes

ReadOnlyMemory<Byte>

The bytes to append to the file.

cancellationToken

CancellationToken

The token to monitor for cancellation requests. The default value is None.

Returns

Task

Exceptions

ArgumentNullException

path is null.

ArgumentException

path is empty.

OperationCanceledException

The cancellation token was canceled. This exception is stored into the returned task.