c#_驗證string每個char是否為數字

private bool IsNumeric(string number)
        {
            try
            {
                for (int i = 0; i < number.Length; i++)
                {
                    if (!char.IsNumber(number, i))
                    {
                        return false;
                    }
                }
                return true;
            }
            catch
            {
                return false;
            }
        }