Of Code and Me

Somewhere to write down all the stuff I'm going to forget and then need

Convert any IEnumerable to a comma separated string of values May 25, 2010

Filed under: Uncategorized — Rupert Bates @ 1:12 pm

This extension method allows you to create a comma separated string from any IEnumerable by passing in a function which takes T and returns the string value which you are interested in:

public static string AsCommaSeparatedString<T>(this IEnumerable<T> enumerable, Func<T, string> value)
            StringBuilder sb = new StringBuilder();
            foreach (T item in enumerable)
            return sb.ToString().TrimEnd(new []{','});

Use it as follows:

            //get a commma separated list of usernames
            var usernames = users.AsCommaSeparatedList(u => u.Name);

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