If I have a button click event and an ObjectDataSource object select event that fires first and why?

Question

The title actually explains all of this, which event fires first in the page life cycle and why?

Answer 1

Look at this image: http://i.msdn.microsoft.com/dynimg/IC386473.png

The third column in the image shows the Control Changed events (in the yellow bubble) before the DataBinding events. The Selecting event is a data binding event, so it lights up after a button is clicked.