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TextWriter.WriteAsync Method (Char)

.NET Framework 4.6 and 4.5

Writes a character to the text string or stream asynchronously.

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

'Declaration
<ComVisibleAttribute(False)> _
<HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading := True)> _
Public Overridable Function WriteAsync ( _
	value As Char _
) As Task

Parameters

value
Type: System.Char

The character to write to the text stream.

Return Value

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

ExceptionCondition
ObjectDisposedException

The text writer is disposed.

InvalidOperationException

The text writer is currently in use by a previous write operation.

The TextWriter class is an abstract class. Therefore, you do not instantiate it in your code. For an example of using the WriteAsync method, see the StreamWriter.WriteAsync method.

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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