How to call asynchronous method from synchronous method in C#?

Question

I have a public async void Foo() method that I want to call from synchronous method. So far all I have seen from MSDN documentation is calling async methods via

Answer 1

Those windows async methods have a nifty little method called AsTask(). You can use this to have the method return itself as a task so that you can manually call Wait() on it.

For example, on a Windows Phone 8 Silverlight application, you can do the following:

private void DeleteSynchronous(string path)
{
    StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
    Task t = localFolder.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask();
    t.Wait();
}

private void FunctionThatNeedsToBeSynchronous()
{
    // Do some work here
    // ....

    // Delete something in storage synchronously
    DeleteSynchronous("pathGoesHere");

    // Do other work here 
    // .....
}

Hope this helps!