This exception occurs when you attempt to add a database object with
a duplicate name to a DataSet -related object.
public class DuplicateNameException : DataException {
// Public Constructors
public DuplicateNameException( );
public DuplicateNameException( string s);
// Protected Constructors
protected DuplicateNameException(System.Runtime.Serialization.SerializationInfo info,
System.Runtime.Serialization.StreamingContext context);
}