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Stream.FlushAsync Method

.NET Framework 4.6 and 4.5

Asynchronously clears all buffers for this stream and causes any buffered data to be written to the underlying device.

Namespace:  System.IO
Assemblies:   mscorlib (in mscorlib.dll)
  System.IO (in System.IO.dll)

[ComVisibleAttribute(false)]
[HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading = true)]
public Task FlushAsync()

Return Value

Type: System.Threading.Tasks.Task
A task that represents the asynchronous flush operation.

ExceptionCondition
ObjectDisposedException

The stream has been disposed.

If a derived class, such as DeflateStream or GZipStream, does not flush the buffer in its implementation of the Flush method, the FlushAsync method will not flush the buffer.

NoteNote

The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: ExternalThreading. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

.NET Framework

Supported in: 4.6, 4.5

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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