SharePoint Webpart Life cycle events

SharePoint Webpart Life cycle events

Event	Source	Description
OnInit	Control	Fired after initialization.
OnLoad	Control	Fired after loading is completed.
CreateChildControls	Control	Creates child controls.
EnsureChildControls	Control	Called to ensure that CreateChildControls has executed.
OnPreRender	Control	Fired after all internal processing and before the controls render. This is the last step you can use to modify controls.
PreRenderComplete	Page	Fires if the page is executed asynchronously , and shows that rendering can be completed.
Render	Control	Renders the Web Part,  including the outer elements and chrome. RenderContents Control Renders the Web Part inside the outer elements and with styles,  but no chrome

Page Life cycle vs Webpart Life cycle