Compare old to new value at validation in LightSwitch

Question

Is there a possibility to compare the old value to the new one during validation.

Say you have a State on some object that is set to A and changed to B. This should only be allowed if the entity fulfills certain circumstances.

Answer 1

Yes, you can access the original values by drilling into the entity.Details.Properties.[propname].OriginalValue

Cheers, -Beth