public class Tools
    {
        /// <summary>
        /// Lock this object to mark part of code for single thread execution
        /// </summary>
        public static object SyncObject = new object();

        public string TruncateLongString(string inputString, int maxChars, string postfix = ".")
        {
            if (maxChars <= 0)
                throw new ArgumentOutOfRangeException("maxChars");
            if (inputString == null || inputString.Length < maxChars)
                return inputString;

            var truncatedString = inputString.Substring(0, maxChars) + postfix;

            return truncatedString;

        }
    }