Question

Possible Duplicate:
Can constructors be async

I have a class Example that pulls several information from the internet on creation.

public class Example
{
    string information;    

    public Example()
    {
        //Pull information
    }
}

Now I would like to let Example become awaitable because it is important that Example is created before continuing the part after creation.

public async void SetupSomething()
{
    Example ex = new Example();
    await ex;
    // Do something with ex
}

How can I do this?

Answer 1

You could do that, but I think that’s not a good approach, because there is nothing forcing the await before you start using the instance.

I think a good idea would be to create static asynchronous method that creates your object. Something like:

class Example
{
    private Example()
    {
    }

    private async Task InitializeAsync()
    {
        // get the required data asynchronously here
    }

    public static async Task<Example> CreateAsync()
    {
        var result = new Example();
        await result.InitializeAsync();
        return resul;
    }
}