First of all i suggest you to the KB article: How to select rows via an unbound checkbox column. Starting with version 13.2, the GridView in the XtraGrid control provides a built-in checkbox column for multiple row selection.
Is there a minimum age to raft or upper age limit? A. 7-years-old for the Classic and 12-years-old for the Challenge. While there is no upper age-limit, we expect everyone to reasonably evaluate his or her fitness level before taking a whitewater rafting trip.
Anyone who can reach the throttle, such as children under 14 years of age, may seem physically able to operate a personal watercraft. But, the law states that operators must be at least 16 years old, or 14 or 15 years old with proof of boater education carried onboard, to operate a PWC.