IsolatedStorageFileStream.WriteAsync Method

Definition

Namespace:

System.IO.IsolatedStorage

Assembly:

System.IO.IsolatedStorage.dll

Overloads

WriteAsync(Byte[], Int32, Int32, CancellationToken)	Asynchronously writes a block of bytes to the isolated storage file stream object using data read from a buffer consisting of a byte array.
WriteAsync(ReadOnlyMemory<Byte>, CancellationToken)	Asynchronously writes a block of bytes to the isolated storage file stream object using data read from a buffer consisting of a read-only byte memory range.

WriteAsync(Byte[], Int32, Int32, CancellationToken)

Source:

IsolatedStorageFileStream.cs

Asynchronously writes a block of bytes to the isolated storage file stream object using data read from a buffer consisting of a byte array.

public:
 override System::Threading::Tasks::Task ^ WriteAsync(cli::array <System::Byte> ^ buffer, int offset, int count, System::Threading::CancellationToken cancellationToken);

public override System.Threading.Tasks.Task WriteAsync (byte[] buffer, int offset, int count, System.Threading.CancellationToken cancellationToken);

override this.WriteAsync : byte[] * int * int * System.Threading.CancellationToken -> System.Threading.Tasks.Task

Public Overrides Function WriteAsync (buffer As Byte(), offset As Integer, count As Integer, cancellationToken As CancellationToken) As Task

Parameters

buffer

Byte[]

The byte array from which to copy bytes to the current isolated storage file stream.

offset

Int32

The byte offset in buffer from which to begin.

count

Int32

The maximum number of bytes to write.

cancellationToken

CancellationToken

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

Returns

Task

A task that represents the asynchronous write operation.

Exceptions

OperationCanceledException

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

Remarks

If the write operation is successful, the current position of the IsolatedStorageFileStream object is advanced by the number of bytes written. If an exception occurs, the current position of the IsolatedStorageFileStream object is unchanged.

This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by Write(Byte[], Int32, Int32).

WriteAsync(ReadOnlyMemory<Byte>, CancellationToken)

Source:

IsolatedStorageFileStream.cs

Asynchronously writes a block of bytes to the isolated storage file stream object using data read from a buffer consisting of a read-only byte memory range.

public override System.Threading.Tasks.ValueTask WriteAsync (ReadOnlyMemory<byte> buffer, System.Threading.CancellationToken cancellationToken = default);

override this.WriteAsync : ReadOnlyMemory<byte> * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask

Public Overrides Function WriteAsync (buffer As ReadOnlyMemory(Of Byte), Optional cancellationToken As CancellationToken = Nothing) As ValueTask

Parameters

buffer

ReadOnlyMemory<Byte>

The read-only byte memory from which to copy bytes to the current isolated storage file stream.

cancellationToken

CancellationToken

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

Returns

ValueTask

A task that represents the asynchronous write operation.

Exceptions

OperationCanceledException

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