Trim string from the end of a string in .NET - why is this missing?

Question

I need this all the time and am constantly frustrated that the Trim(), TrimStart() and TrimEnd() functions don\'t take strings as inputs. You call EndsWith() on a string, an

Answer 1

EDIT - wrapped up into a handy extension method:

public static string TrimEnd(this string source, string value)
{
    if (!source.EndsWith(value))
        return source;

    return source.Remove(source.LastIndexOf(value));
}

so you can just do s = s.TrimEnd("DEF");