Web Part Life Cycle
- OnInit
- LoadViewState
- CreateChildControl
- Onload
- usergenerated Event
- onpreRender
- RenderControl
- SaveViewState
- Dispose
- Unload
OnInit
Configuration values set using WebBrowsable properties
LoadViewState –
The view state of the web part is populated over here.'
CreateChildControls –
All the controls specified are created and added to controls collection. When the page is being rendered for the first time the method generally occurs after the OnLoad() event. In case of postback, it is called before the OnLoad() event. We can make use of EnsureChildControls() - It checks to see if the CreateChildControls method has yet been called, and if it has not, calls it.
OnLoad
User Generated Event
for e.g. button click on the web part.
OnPreRender
Here we can change any of the web part properties before the control output is
drawn.
RenderContents
Html Output is generated.
SaveViewState
View state of the web part is serialized and saved.
Dispose
UnLoad.