Why wait not wait?

Question

This is my actual code:

    async Task getData()
    {
        Thread.Sleep(5000);
        Console.WriteLine("Step 1");

        using (HttpClient api = new HttpClient()) 
            await api.GetAsync("http://google.com/").ContinueWith(
                (getTask) =>
                    Console.WriteLine(getTask.Result.StatusCode);
            );

        Console.WriteLine("Step 2");
    }

    private void button1_Click(object sender, EventArgs e)
    {
        Task<Task> task = new Task<Task>(getData);
        task.Start();
        task.Wait();
        Console.WriteLine("Step 3");
    }

I get the following output:

Step 1
Step 3
OK
Step 2

Why Step 3doesn't it come after Step 2?

How can I make it work sequentially, i.e. return to the caller getDataonly until everything is done in getData?

Answer 1

You should also mark the event handler as async

private async Task button1_Click(object sender, EventArgs e)

and awaitinstead of Wait:

private async Task button1_Click(object sender, EventArgs e)
{
    await getData();

    Console.WriteLine("Step 3");
}

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Answer 2

- async Task ( <T>) Task, .

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