Web Part Life Cycle in Sharepoint

1. OnInit: event used to create controls of web part
2. OnLoad:
3. CreateChildControls: event used to set properties and default values to controls collection

• If the page is being rendered for the first time the method generally occurs after the OnLoad event.
• If it is Postback, It is called before OnLoad event.
• EnsureChildControls: It checks to see if the CreateChildControls method has yet been called, and if it has not, calls it.

4. LoadViewState: The view state of the web part is populated over here.
5. OnPreRender: event used to set up business logic related work and in this routine controls value kept by viewstate
6. Render: event creates the HTML that appears in the body of the Web Part.
7. OnUnload:
8. Dispose: