XmlWriter.FlushAsync 方法
定义
将缓冲区中的所有内容异步刷新到基础流,并同时刷新基础流。Asynchronously flushes whatever is in the buffer to the underlying streams and also flushes the underlying stream.
public:
virtual System::Threading::Tasks::Task ^ FlushAsync();
public virtual System.Threading.Tasks.Task FlushAsync ();
abstract member FlushAsync : unit -> System.Threading.Tasks.Task
override this.FlushAsync : unit -> System.Threading.Tasks.Task
Public Overridable Function FlushAsync () As Task
返回
表示 Flush 异步操作的任务。The task that represents the asynchronous Flush operation.
例外
在上一次异步操作完成之前调用了 XmlWriter 方法。An XmlWriter method was called before a previous asynchronous operation finished. 在此情况下,会引发 InvalidOperationException 并显示消息“异步操作已在进行中。”In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."
- 或 --or-
调用了 XmlWriter 异步方法,但未将 Async 标志设置为 true。An XmlWriter asynchronous method was called without setting the Async flag to true. 在这种情况下,将引发 InvalidOperationException 并显示消息“如果要使用异步方法,请将 XmlWriterSettings.Async 设置为 true”。In this case, InvalidOperationException is thrown with the message "Set XmlWriterSettings.Async to true if you want to use Async Methods."
注解
这是的异步版本 Flush ,具有相同的功能。This is the asynchronous version of Flush, with the same functionality. 若要使用此方法,必须将 Async 标志设置为 true 。To use this method, you must set the Async flag to true.