[Description] Before rendering, view state is saved for the page and all controls. During the rendering stage, the page calls the Render method for each control, providing a text writer that writes its output to the OutputStream object of the page's Response property. [Stage] 
Rendering
P a g e r e q u e s t
S t a r t
I n i t i a l i z a t i o n
L o a d
P o s t b a c k e v e n t h a n d l i n g
R e n d e r i n g
U n l o a d