报表上金额由阿拉伯数字转换成中文大写

        /// <summary>

        /// 总金额大小写转换

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void xrTableCell22_BeforePrint(object sender, System.Drawing.Printing.PrintEventArgs e)

        {

            string str = ((XRTableCell)sender).Text;

            ((XRTableCell)sender).Text = "总金额人民币（大写）：" + ConvertSum(str);//调用ConvertSum转换主函数

        }

 

        ///   <summary>   

        ///   转换数字金额主函数（包括小数）   

        ///   </summary>   

        ///   <param   name="str">数字字符串</param>   

        ///   <returns>转换成中文大写后的字符串或者出错信息提示字符串</returns>   

        public string ConvertSum(string str)

        {

            if (!IsPositveDecimal(str))

                return "输入的不是正数字！";

            if (Double.Parse(str) > 999999999999.99)

                return "数字太大，无法换算，请输入一万亿元以下的金额";

            char[] ch = new char[1];

            ch[0] = '.';   //小数点   

            string[] splitstr = null;   //定义按小数点分割后的字符串数组   

            splitstr = str.Split(ch[0]);//按小数点分割字符串   

            if (splitstr.Length == 1)   //只有整数部分   

                return ConvertData(str) + "圆整";

            else   //有小数部分   

            {

                string rstr;

                rstr = ConvertData(splitstr[0]) + "圆";//转换整数部分   

                rstr += ConvertXiaoShu(splitstr[1]);//转换小数部分   

                return rstr;

            }

        }

        ///   <summary>   

        ///   判断是否是正数字字符串   

        ///   </summary>   

        ///   <param   name="str">   判断字符串</param>   

        ///   <returns>如果是数字，返回true，否则返回false</returns>   

        public bool IsPositveDecimal(string str)

        {

            Decimal d;

            try

            {

                d = Decimal.Parse(str);

            }

            catch (Exception)

            {

                return false;

            }

            if (d > 0)

                return true;

            else

                return false;

        }

        ///   <summary>   

        ///   转换数字（整数）   

        ///   </summary>   

        ///   <param   name="str">需要转换的整数数字字符串</param>   

        ///   <returns>转换成中文大写后的字符串</returns>   

        public string ConvertData(string str)

        {

            string tmpstr = "";

            string rstr = "";

            int strlen = str.Length;

            if (strlen <= 4)//数字长度小于四位   

            {

                rstr = ConvertDigit(str);

            }

            else

            {

                if (strlen <= 8)//数字长度大于四位，小于八位   

                {

                    tmpstr = str.Substring(strlen - 4, 4);//先截取最后四位数字   

                    rstr = ConvertDigit(tmpstr);//转换最后四位数字   

                    tmpstr = str.Substring(0, strlen - 4);//截取其余数字   

                    //将两次转换的数字加上萬后相连接   

                    rstr = String.Concat(ConvertDigit(tmpstr) + "萬", rstr);

                    rstr = rstr.Replace("零萬", "萬");

                    rstr = rstr.Replace("零零", "零");

                }

                else

                    if (strlen <= 12)//数字长度大于八位，小于十二位   

                    {

                        tmpstr = str.Substring(strlen - 4, 4);//先截取最后四位数字   

                        rstr = ConvertDigit(tmpstr);//转换最后四位数字   

                        tmpstr = str.Substring(strlen - 8, 4);//再截取四位数字   

                        rstr = String.Concat(ConvertDigit(tmpstr) + "萬", rstr);

                        tmpstr = str.Substring(0, strlen - 8);

                        rstr = String.Concat(ConvertDigit(tmpstr) + "億", rstr);

                        rstr = rstr.Replace("零億", "億");

                        rstr = rstr.Replace("零萬", "零");

                        rstr = rstr.Replace("零零", "零");

                        rstr = rstr.Replace("零零", "零");

                    }

            }

            strlen = rstr.Length;

            if (strlen >= 2)

            {

                switch (rstr.Substring(strlen - 2, 2))

                {

                    case "佰零": rstr = rstr.Substring(0, strlen - 2) + "佰"; break;

                    case "仟零": rstr = rstr.Substring(0, strlen - 2) + "仟"; break;

                    case "萬零": rstr = rstr.Substring(0, strlen - 2) + "萬"; break;

                    case "億零": rstr = rstr.Substring(0, strlen - 2) + "億"; break;

                }

            }

            return rstr;

        }

        ///   <summary>   

        ///   转换数字（小数部分）   

        ///   </summary>   

        ///   <param   name="str">需要转换的小数部分数字字符串</param>   

        ///   <returns>转换成中文大写后的字符串</returns>   

        public string ConvertXiaoShu(string str)

        {

            int strlen = str.Length;

            string rstr;

            if (strlen == 1)

            {

                rstr = ConvertChinese(str) + "角";

                return rstr;

            }

            else

            {

                string tmpstr = str.Substring(0, 1);

                rstr = ConvertChinese(tmpstr) + "角";

                tmpstr = str.Substring(1, 1);

                rstr += ConvertChinese(tmpstr) + "分";

                rstr = rstr.Replace("零分", "");

                rstr = rstr.Replace("零角", "");

                return rstr;

            }

        }

        ///   <summary>   

        ///   转换数字   

        ///   </summary>   

        ///   <param   name="str">转换的字符串（四位以内）</param>   

        ///   <returns></returns>   

        public string ConvertDigit(string str)

        {

            int strlen = str.Length;

            string rstr = "";

            switch (strlen)

            {

                case 1: rstr = ConvertChinese(str); break;

                case 2: rstr = Convert2Digit(str); break;

                case 3: rstr = Convert3Digit(str); break;

                case 4: rstr = Convert4Digit(str); break;

            }

            rstr = rstr.Replace("拾零", "拾");

            strlen = rstr.Length;

            return rstr;

        }

        ///   <summary>   

        ///   转换四位数字   

        ///   </summary>   

        public string Convert4Digit(string str)

        {

            string str1 = str.Substring(0, 1);

            string str2 = str.Substring(1, 1);

            string str3 = str.Substring(2, 1);

            string str4 = str.Substring(3, 1);

            string rstring = "";

            rstring += ConvertChinese(str1) + "仟";

            rstring += ConvertChinese(str2) + "佰";

            rstring += ConvertChinese(str3) + "拾";

            rstring += ConvertChinese(str4);

            rstring = rstring.Replace("零仟", "零");

            rstring = rstring.Replace("零佰", "零");

            rstring = rstring.Replace("零拾", "零");

            rstring = rstring.Replace("零零", "零");

            rstring = rstring.Replace("零零", "零");

            rstring = rstring.Replace("零零", "零");

            return rstring;

        }

        ///   <summary>   

        ///   转换三位数字   

        ///   </summary>   

        public string Convert3Digit(string str)

        {

            string str1 = str.Substring(0, 1);

            string str2 = str.Substring(1, 1);

            string str3 = str.Substring(2, 1);

            string rstring = "";

            rstring += ConvertChinese(str1) + "佰";

            rstring += ConvertChinese(str2) + "拾";

            rstring += ConvertChinese(str3);

            rstring = rstring.Replace("零佰", "零");

            rstring = rstring.Replace("零拾", "零");

            rstring = rstring.Replace("零零", "零");

            rstring = rstring.Replace("零零", "零");

            return rstring;

        }

        ///   <summary>   

        ///   转换二位数字   

        ///   </summary>   

        public string Convert2Digit(string str)

        {

            string str1 = str.Substring(0, 1);

            string str2 = str.Substring(1, 1);

            string rstring = "";

            rstring += ConvertChinese(str1) + "拾";

            rstring += ConvertChinese(str2);

            rstring = rstring.Replace("零拾", "零");

            rstring = rstring.Replace("零零", "零");

            return rstring;

        }

        ///   <summary>   

        ///   将一位数字转换成中文大写数字   

        ///   </summary>   

        public string ConvertChinese(string str)

        {

            //"零壹贰叁肆伍陆柒捌玖拾佰仟萬億圆整角分"   

            string cstr = "";

            switch (str)

            {

                case "0": cstr = "零"; break;

                case "1": cstr = "壹"; break;

                case "2": cstr = "贰"; break;

                case "3": cstr = "叁"; break;

                case "4": cstr = "肆"; break;

                case "5": cstr = "伍"; break;

                case "6": cstr = "陆"; break;

                case "7": cstr = "柒"; break;

                case "8": cstr = "捌"; break;

                case "9": cstr = "玖"; break;

            }

            return (cstr);

        }