Check Constraints of Columns are not coming automatically in Data Sets, i.e. i have added a simple constraint on the age field of one of my tables (age > 18), when i try to enter value less then 18 in Enterrpise Manager, it gives error but when the same data is accessed through datasets, it is accepting value without giving errors.
How i can bring all the check constraints and Refrential Integrity from my tables in the datasets to avoid double coding

Check Constraints of Columns not coming automatically in Data Sets