[Description] During load, if the current request is a postback, control properties are loaded with information recovered from view state and control state. [Stage] 
Load
P a g e r e q u e s t
S t a r t
P a g e i n i t i a l i z a t i o n
L o a d
V a l i d a t i o n
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