WriteAsync Method (String)
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TextWriter.WriteAsync Method (String)

.NET Framework (current version)
 

Writes a string to the text string or stream asynchronously.

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

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

Parameters

value
Type: System.String

The string to write. If value is null, nothing is written to the text stream.

Return Value

Type: System.Threading.Tasks.Task

A task that represents the asynchronous write operation.

Exception Condition
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.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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