捕獲異步空方法引發的異常。使用Microsoft for.NET的異步CTP，是否有可能捕獲調用方法中的異步方法引發的異常？public async void Foo(){
var x = await DoSomethingAsync();
/* Handle the result, but sometimes an exception might be thrown.
For example, DoSomethingAsync gets data from the network
and the data is invalid... a ProtocolException might be thrown. */}public void DoFoo(){
try
{
Foo();
}
catch (ProtocolException ex)
{
/* The exception will never be caught.
Instead when in debug mode, VS2010 will warn and continue.
The deployed the app will simply crash. */
}}因此，基本上，我希望異步代碼中的異常出現在我的調用代碼中，如果這是可能的話。
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TA貢獻2011條經驗 獲得超2個贊
Foo()TaskDoFoo()await Foo()
public async Task Foo() {
var x = await DoSomethingThatThrows();}public async void DoFoo() {
try {
await Foo();
} catch (ProtocolException ex) {
// This will catch exceptions from DoSomethingThatThrows
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