Ever wondered how Sitecore caches works? It is pretty cool, actually. Sitecore can cache the output of any presentation component that it is aware of (Sublayout, WebControl, XSL Rendering). Basically, this output may vary on data context (Context Item or Datasource), device, whether user is logged in or not, parameters passed to the rendering, query string and Context user:
This gives a ton of options and in most cases this is sufficient, but what if the output of your rendering depends on inner logic embedded within the control? Sometimes you could solve this with VaryByParm and by passing different parameters to the rendering, but what if that’s not the case?
This is exactly the use case I have been presented during another onsite visit with a customer.
Here is a very simple way of extending the cache variation logic for a Sublayout.
Sitecore USA will be conducting a brief 30 minute call for Sitecore Certified Developers tomorrow at 10 AM Pacific. Here is what we will be covering:
