Replace a string where a numeric value occurs(1000000) should be in decimal format like(1,000,000.00)

Question

Input:

"HRA 1000000 and TDA 120000 and other benefits"

OutPut required is:

"HRA 1,000,000.00 and TDA 120,000.00 and other benefits"

string input = "HRA 1000000 and TDA 120000 and other benefits"; 
string[] numbers = Regex.Split(input, @"\D+");
foreach (string value in numbers)
{
    if (!string.IsNullOrEmpty(value))
    {
        string i = (value);                      
        i = String.Format("{0:n}", decimal.Parse(i, System.Globalization.NumberStyles.Any));
    }
}

Answer 1

Check my code I search for the numbers in string and replace its by the new format

string strRegex = @"(\d+)";
Regex myRegex = new Regex(strRegex, RegexOptions.None);
string strTargetString = @"HRA 1000000 and TDA 120000 and other benefits";

foreach(Match match in myRegex.Matches(strTargetString))
{
    strTargetString = strTargetString.Replace(match.Value, 
                                 string.Format("{0:n}", decimal.Parse(match.Value, System.Globalization.NumberStyles.Any)));            
}

Answer 2

You could do this. Test the value if a decimal and replace it in the original string.

foreach (string value in numbers)
{
    decimal number = 0;
    decimal.TryParse(value, out number);
    if (number > 0)
    {
        input = input.Replace(value, string.Format("{0:N0}", number));
    }
}

Answer 3

String.Format("{0:0,0.00}", 12345);     // "12,345.00"

似乎是你所需要的。