TextWriter.WriteLineAsync Method (String)

.NET Framework (current version)

Writes a string followed by a line terminator asynchronously to the text string or stream.

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

[HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading = true)]
public virtual Task WriteLineAsync(
	string value


Type: System.String

The string to write. If the value is null, only a line terminator is written.

Return Value

Type: System.Threading.Tasks.Task

A task that represents the asynchronous write operation.

Exception Condition

The text writer is disposed.


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

The line terminator is defined by the CoreNewLine field.

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

Universal Windows Platform
Available since 8
.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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