help with reg expression

What expression do I need to replace the second parameter in a string:

string(blah1,blah2,blah3)

to

string(blah1,"blah2",blah3)

basically it has to replace the text after the first comma but before the second comma but also it could be string(blah1,blah2) to not necessarily the second comma.

You could try...

Code:

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string result = workingString.Replace(workingString.Split(',')[1], String.Format("\"{0}\"", workingString.Split(',')[1]));

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...or the more verbose...

Code:

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            string result = string.Empty;
            string[] stringParts = workingString.Split(',');

            if (stringParts.Length > 1)
            {
                stringParts[1] = String.Format("\"{0}\"", stringParts[1]);
                result = String.Join(",", stringParts);
            }

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