public bool IsDateSelectable(Date date)
            {
                var handler = Handler;

                if (handler != null)
                {
                    var e = new DateSelectableFilterEventArgs(date);
                    handler(sender, e);
                    return(e.IsDateSelectable);
                }
                return(false);
            }
 public bool IsDateSelectable(Date date)
 {
     var handler = Handler;
     if (handler != null)
     {
         var e = new DateSelectableFilterEventArgs(date);
         handler(sender, e);
         return e.IsDateSelectable;
     }
     return false;
 }