Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

XmlWriter.WriteRawAsync Method (Char[], Int32, Int32)

.NET Framework 4.6 and 4.5

Asynchronously writes raw markup manually from a character buffer.

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

public virtual Task WriteRawAsync(
	char[] buffer,
	int index,
	int count


Type: System.Char[]

Character array containing the text to write.

Type: System.Int32

The position within the buffer indicating the start of the text to write.

Type: System.Int32

The number of characters to write.

Return Value

Type: System.Threading.Tasks.Task

The task that represents the asynchronous WriteRaw 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 WriteRaw, with the same functionality. To use this method, you must set the Async flag to true.

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
Return to top
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
© 2015 Microsoft