Sequence Of Events In Master And Content Pages

This information will let you know about the page event cycle in an application if we have multiple types of pages (master, aspx, ascx).

When a request is hit to IIS under ASP.NET application which consist of master page and aspx pages, both the contain event handles the controls. A control in a content page raises an event in the content page, and a control in the master page raises an event in the master page.

The following is the sequence in which events occur when a master page is merged with a content page:

1. Content page PreInit event.
2. Master page controls Init event.
3. Content controls Init event.
4. Master page Init event.
5. Content page Init event.
6. Content page Load event.
7. Master page Load event.
8. Master page controls Load event.
9. Content page controls Load event.
10. Content page PreRender event.
11. Master page PreRender event.
12. Master page controls PreRender event.
13. Content page controls PreRender event.
14. Master page controls Unload event.
15. Content page controls Unload event.
16. Master page Unload event.
17. Content page Unload event.

Hope this helps!