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.
Water skiing and other towed recreation is not allowed between sunset and sunrise. There must be at least two people in the towing boat: an operator and a person to observe the skier. If the operator is 12 or younger, the observer must be at least 18.