Async modifier in C#

Question

I have the question, what is the difference between these two methods?

    async private void Button_Click_1(object sender, RoutedEventArgs e)
    {
                 


        

Answer 1

async by itself will not enable asynchronous (non-blocking) method invocation.
You should use await inside the async function.

You should read this to have a better understanding of this capability.