I’ve been focusing a lot (read: “learning”) on WPF lately, and one thing that crops up all the time is StaticResource and DynamicResource. I had tried to infer their usage/differences from the context of where I’d seen them used, but I could never quite get it right. Anyway, I just read a nice definition which makes it all rather clear:
Static resources are resolved at compile time, whereas dynamic resources are resolved at runtime.
Use DynamicResources when the value of the resource could change during the lifetime of the Application.
Use StaticResources when it’s clear that you don’t need your resource re-evaluated when fetching it – static resources perform better than dynamic resources.
