I have a project that is permission based and would like to convert it over to use the application blocks.
Is the security application block able to be used without having any roles?
So far all the samples that I have seen need to have a role. i.e. <add expression="R:Developer OR R:Manager" name="Resolve Bug" />
Also, we have existing sql tables for our permissions, do we need to convert them to a specific layout or can we use what we already have?