XmlWriter.WriteQualifiedNameAsync Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Asynchronously writes out the namespace-qualified name. This method looks up the prefix that is in scope for the given namespace.
Assembly: System.Xml (in System.Xml.dll)
Parameters
- localName
- Type: System.String
The local name to write.
- ns
- Type: System.String
The namespace URI for the name.
Return Value
Type: System.Threading.Tasks.TaskThe task that represents the asynchronous WriteQualifiedName operation.
| Exception | Condition |
|---|---|
| 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 WriteQualifiedName(String, String), with the same functionality. To use this method, you must set the Async flag to true.