Question

I am trying to save some simple data in my C# Windows 8 application, however, I can’t seem to get any of the async file operations to work.

I can write:

ApplicationData.Current.LocalFolder.CreateFileAsync(...);

however, if I add an await command in front of that and attempt to convert it into the form:

StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync(...);

I start getting compiler errors. Specifically that that await operator can only be used with async operations. Since the operation is async I’m a bit confused.

What am I doing wrong?

Answer 1

The method in which your async call (in this case CreateFileAsync) must be marked async in order for you to call an async method with await.

See the question here for a properly formed method in which to call an async method with await.