c# - How do you put your design time view model in a separate assembly? -

i'm using mvvm light , prism view model locator pattern. having design time view model use in blend, don't want ship production code. there way put design time view model in assembly , tell view model locator find there? seems design time assemblies (*.design.dll) solve problem, can't quite work out how.

mike,
add following xaml..

xmlns:designtime="clr-namespace:mydesigntimens;assembly=mybinaryname" d:datacontext="{d:designinstance designtime:designtimeobjectnameviewmodel, isdesigntimecreatable=true} 

with this, i'm able keep design time data in separate binary , not distribute it.