本文整理汇总了C#中System.Activities.AsyncCodeActivity类的典型用法代码示例。如果您正苦于以下问题：C# AsyncCodeActivity类的具体用法？C# AsyncCodeActivity怎么用？C# AsyncCodeActivity使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
AsyncCodeActivity类属于System.Activities命名空间，在下文中一共展示了AsyncCodeActivity类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: FileWriter
public sealed class FileWriter : AsyncCodeActivity
{
public FileWriter()
: base()
{
}
protected override IAsyncResult BeginExecute(AsyncCodeActivityContext context, AsyncCallback callback, object state)
{
string tempFileName = Path.GetTempFileName();
Console.WriteLine("Writing to file: " + tempFileName);
FileStream file = File.Open(tempFileName, FileMode.Create);
context.UserState = file;
byte[] bytes = UnicodeEncoding.Unicode.GetBytes("123456789");
return file.BeginWrite(bytes, 0, bytes.Length, callback, state);
}
protected override void EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
{
FileStream file = (FileStream)context.UserState;
try
{
file.EndWrite(result);
file.Flush();
}
finally
{
file.Close();
}
}
}