In Silverlight with RIA services it is very easy to implement simple data filtering with 'FilterDescriptor' instances.
However I've got a case where I have several filters and I want to enable or disable them based on other filters.
It seems like a simple 'Enabled' property would make this really easy - but there is none.
Is there a way to achieve this without just manually defining all the filters I need every time the relevant checkbox is checked. Perhaps a subclass? (I haven't had time to try this myself yet)
I am doing this by setting each one to -1 by default, and have the IgnoredValue="-1" in the FilterDescriptor. You can also use null or Nothing depending on your language your using. Ken