ArcGISDynamicMapServiceLayer and ArcGISTiledMapServiceLayer not working together

Discussion created by sdeutch on Jul 11, 2012
Latest reply on Jul 11, 2012 by sdeutch
I have an aerials layer which needs to be the base map layer.  It is not cached so it is my ArcGISDynamicMapServiceLayer.  I have a roads layer that is cached and is my ArcGISTiledMapServiceLayer. 

I want the roads to sit on top of the aerials however it seems if I load the Dynamic map layer first than the tiled map layer will not display.

Is it the case that a Tiled Map Service Layer MUST be loaded first?