GetStrMoney

        public static string GetStrMoney(this string digit)
        {
            string afterPoint = string.Empty;
            string strDigit = digit;
            int pos = digit.IndexOf('.');
            if (digit.IndexOf('.') != -1)
            {
                strDigit = digit.Substring(0, pos);
                afterPoint = digit.Substring(pos, digit.Length - pos);
            }

            int len = strDigit.Length;
            if (len <= 3)
                return digit;

            strDigit = strDigit.ReverseString();
            string result = string.Empty;
            for (int i = 0; i < len; i++)
            {
                result += strDigit[i];
                if ((i + 1) % 3 == 0 && i != len - 1)
                    result += ',';
            }

            if (string.IsNullOrEmpty(afterPoint))
                result = result.ReverseString();
            else result = result.ReverseString() + afterPoint;
            return result;
        }

        public static string ReverseString(this string s)
        {
            char[] c = s.ToCharArray();
            string ts = string.Empty;

            for (int i = c.Length - 1; i >= 0; i--)
                ts += c[i].ToString();

            return ts;
        }
Example: 
value in TextBox : 12345
textbox1.text.GetStrMoney() => 12,345

value in TextBox : 1234567.325
textbox1.text.GetStrMoney() => 1,234,567.325

Description

this method is convert integer or float money data to separated comma string that is simple to read

Details

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