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XmlWriter.WriteAttributesAsync Method

.NET Framework 4.5

Asynchronously writes out all the attributes found at the current position in the XmlReader.

Namespace:  System.Xml
Assemblies:   System.Xml.ReaderWriter (in System.Xml.ReaderWriter.dll)
  System.Xml (in System.Xml.dll)

public virtual Task WriteAttributesAsync(
	XmlReader reader,
	bool defattr
)

Parameters

reader
Type: System.Xml.XmlReader

The XmlReader from which to copy the attributes.

defattr
Type: System.Boolean

true to copy the default attributes from the XmlReader; otherwise, false.

Return Value

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

ExceptionCondition
InvalidOperationException

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.”

InvalidOperationException

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 WriteAttributes, with the same functionality. To use this method, you must set the Async flag to true.

.NET Framework

Supported in: 4.6, 4.5

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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