Asp.net page events fire order
Microsoft’s article on this is more detailed than the following table.
Here is a quick summary of the page events and their load order. Taken from AspAlliance
Page Events Summary
| Method | PostBack | Controls |
| Constructor | Always | All |
| AddParsedSubObject | Always | All |
| DeterminePostBackMode | Always | Page |
| OnInit | Always | All |
| LoadPageStateFromPersistenceMedium | PostBack | Page |
| LoadViewState | PostBack | All |
| ProcessPostData1 | PostBack | Page |
| OnLoad | Always | All |
| ProcessPostData2 | PostBack | Page |
| RaiseChangedEvents | PostBack | Page |
| RaisePostBackEvent | PostBack | Page |
| OnPreRender | Always | All |
| SaveViewState | Always | All |
| SavePageStateToPersistenceMedium | Always | Page |
| Render | Always | All |
| OnUnload | Always | All |