I’m working on a site which needs to be able to support two or more looks, changable at runtime. I’d hoped to be able to handle the change with a CSS switch, but it looks like I’ll need to use a different masterpage for each design.
So, what’s the best way to set the masterpage at runtime? Page.MasterPageFile can only be set in the Page.OnPreInit event. It looks like the solutions are to make all my pages inherit from a common base which handles the PreInit event, or to use an HttpModule which does that.
Any advice?
I’ve done this once before, I did exactly what you described (Made all pages inherit from a custom page with an OnPreInit event). Also I had a custom Application_PreRequestHandlerExecute in my Global.asax.cs for setting Page.StyleSheetTheme for doing image/css changes that didn’t require a different Master Page.