我有以下代码:
List<Task> tasks = new List<Task>();
tasks.Add(Task.Factory.StartNew(() =>
{
rs1.Process();
}).ContinueWith((previousTask) =>
{
rs5.Process();
rs6.Process();
}));
tasks.Add(Task.Factory.StartNew(() =>
{
rs2.Process();
}));
tasks.Add(Task.Factory.StartNew(() =>
{
rs3.Process();
}));
try
{
Task.WaitAll(tasks.ToArray());
}
catch (AggregateException e)
{
}
rs1.process finishes()rs5.process()和rs6.process()运行同步。我如何运行它们异步。
如果我使用内部任务,他们没有等待
您需要一个内部任务列表:
tasks.Add(Task.Factory.StartNew(() =>
{
rs1.Process();
}).ContinueWith((previousTask) =>
{
List<Task> loInnerTasks = new List<Task>();
loInnerTasks.Add(Task.Run(() => rs5.Process()));
loInnerTasks.Add(Task.Run(() => rs6.Process()));
Task.WaitAll(loInnerTasks.ToArray());
}));
更新(使用TaskCreationOptions.AttachedToParent
):
tasks.Add(Task.Factory.StartNew(() =>
{
rs1.Process();
}).ContinueWith((previousTask) =>
{
Task.Factory.StartNew(() => rs5.Process(), TaskCreationOptions.AttachedToParent);
Task.Factory.StartNew(() => rs6.Process(), TaskCreationOptions.AttachedToParent);
}));
也应以两种方式捕获例外。