title: EnforceConstraint on Datatable
body: <p>On a dataset is a EnforceConstraints property indicating whether the constraints should be enabled. Althought a datatable also can have constraints i cannot disable the constraints for a datatable. </p>
  
  <p>My case is that I have datatable which i use in memory with a uniqueconstraint on one of the columns. Sometimes i want to temporarily disable the unique constraint. How can I do this? The only thing I came up with is removing and re-adding the constraint. Is there a better way?</p>