獲取數據方（usercontrol111）聲明

 public Func<Tuple<int, int>> GetCurrentResult { get; set; }

獲取數據方調用

 var val = GetCurrentResult?.Invoke() ?? new Tuple<decimal, decimal>(0, 0);

數據發送方聲明與賦值

 usercontrol111.GetCurrentResult = TransCurrentResult;

數據發送方賦值

private Tuple<decimal, decimal> TransCurrentResult()
{return new Tuple<decimal, decimal>(2m,8m);
}