Question

I am trying to do a simple replacement utilizing the static RegEx.Replace method and it fails if inside the replacement string I have “$0.00” or some sort of derivative of this.

Here is the code:

void Main()
{
    try
    {           
        string inputString = "[BEGIN-LOOP:DETAILS]this is what I want to replace[END-LOOP:DETAILS]";
        string replacementString = "some text $0.00";   
        inputString = Regex.Replace(inputString, @"(\[BEGIN-LOOP:DETAILS\])(.*?)(\[END-LOOP:DETAILS\])", replacementString, RegexOptions.IgnoreCase | RegexOptions.Singleline);
        Console.WriteLine(inputString);     
    }
    catch (Exception ex)
    {
        throw;
    }
}

Output of the failed RegEx is:

some text [BEGIN-LOOP:DETAILS]this is what I want to replace[END-LOOP:DETAILS].00

It should be

some text $0.00

Answer 1

You need to escape the dollar as shown on the MSDN page on Substitutions.

The $$ substitution inserts a literal “$” character in the replaced string.

So you want:

string replacementString = "some text $$0.00";

As an aside, please don’t use try/catch blocks like that… it clutters up your code for no benefit.