XmlWriter.WriteWhitespaceAsync Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Asynchronously writes out the given white space.

Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)


Public Overridable Function WriteWhitespaceAsync ( _
    ws As String _
) As Task
public virtual Task WriteWhitespaceAsync(
    string ws


Return Value

Type: System.Threading.Tasks..::.Task
The task that represents the asynchronous WriteWhitespace operation.


Exception Condition

An XmlWriter method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”


An XmlWriter asynchronous method was called without setting the Async flag to true. In this case, InvalidOperationException is thrown with the message “Set XmlWriterSettings.Async to true if you want to use Async Methods.”


This is the asynchronous version of WriteWhitespace(String), with the same functionality. To use this method, you must set the Async flag to true.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0

See Also


XmlWriter Class

System.Xml Namespace