WPF add event in definition of object

Question

I wanted to ask, if it's possible to add event into definition of object. I know how to add event to object when you define it 'separately', not 'nested' like this. But I'd like to use this kind of syntax. Thank you.

StackPanel sp = new StackPanel()
{
    HorizontalAlignment = HorizontalAlignment.Center,
    VerticalAlignment = VerticalAlignment.Center,
    Children =
    {
       new Button
       {
          Content = "Click Here",

           // !!! NEED ADD CLICK EVENT HERE !!!
       }
     }
};