XmlWriter::WriteElementStringAsync Method (String^, String^, String^, String^)

.NET Framework (current version)

Asynchronously writes an element with the specified prefix, local name, namespace URI, and value.

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

Task^ WriteElementStringAsync(
	String^ prefix,
	String^ localName,
	String^ ns,
	String^ value


Type: System::String^

The prefix of the element.

Type: System::String^

The local name of the element.

Type: System::String^

The namespace URI of the element.

Type: System::String^

The value of the element.

Return Value

Type: System.Threading.Tasks::Task^

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

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
Return to top