System.Xml.Xsl.XslTransformException.CreateMessage C# (CSharp) Method

        internal static string CreateMessage(string res, params string[] args)
        {
            string message = null;

            try
            {
                if (args == null)
                {
                    message = res;
                }
                else
                {
                    message = string.Format(res, args);
                }
            }
            catch (MissingManifestResourceException)
            {
            }

            if (message != null)
            {
                return message;
            }

            StringBuilder sb = new StringBuilder(res);
            if (args != null && args.Length > 0)
            {
                Debug.Fail("Resource string '" + res + "' was not found");
                sb.Append('(');
                sb.Append(args[0]);
                for (int idx = 1; idx < args.Length; idx++)
                {
                    sb.Append(", ");
                    sb.Append(args[idx]);
                }
                sb.Append(')');
            }
            return sb.ToString();
        }