I'm using CSLA 4 with a WPF UI. I have an area with ten checkboxes on my form and I want to require one of those be checked, otherwise all are invalid. My business object has a property defined for each checkbox. What would be the best approach for this type of business rule?
So you have ten boolean properites on a single bo? A single rule which returns an Or of each property would be your best bet I'd think. Tie it to each of the properties.
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