XmlWriter.WriteAttributesAsync(XmlReader, Boolean) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Asynchronously writes out all the attributes found at the current position in the XmlReader.
public:
virtual System::Threading::Tasks::Task ^ WriteAttributesAsync(System::Xml::XmlReader ^ reader, bool defattr);public virtual System.Threading.Tasks.Task WriteAttributesAsync (System.Xml.XmlReader reader, bool defattr);abstract member WriteAttributesAsync : System.Xml.XmlReader * bool -> System.Threading.Tasks.Task
override this.WriteAttributesAsync : System.Xml.XmlReader * bool -> System.Threading.Tasks.TaskPublic Overridable Function WriteAttributesAsync (reader As XmlReader, defattr As Boolean) As TaskParameters
- reader
- XmlReader
The XmlReader from which to copy the attributes.
- defattr
- Boolean
true to copy the default attributes from the XmlReader; otherwise, false.
Returns
The task that represents the asynchronous WriteAttributes operation.
Exceptions
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."
-or-
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."
Remarks
This is the asynchronous version of WriteAttributes, with the same functionality. To use this method, you must set the Async flag to true.
This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by WriteAttributes(XmlReader, Boolean).
