SetTitleValue [Winform]

        /// <summary>
        /// Allows an update to a window's title with added a new value while maintaining the base title.
        /// 'Notepad'
        /// </summary>
        /// <remarks>
        /// Example:
        /// string result = SetTitleValue("Notepad","Document1");
        /// MessageBox.Show(result);
        /// // result = 'Notepad - Document1'
        /// result = SetTitleValue("Notepad",null); // or string.Empty
        /// // result = 'Notepad';
        /// </remarks>
        /// <param name="titleBase">The base start of the title</param>
        /// <param name="value">The value appended onto the <see cref="titleBase"/></param>
        /// <returns>
        /// The formated title as "{0}{1}{2}", where
        ///     {0} is <see cref="titleBase"/>,
        ///     {1} is <see cref="separator"/>, and
        ///     {2} is <see cref="value"/>
        /// </returns>
        public static string SetTitleValue(string titleBase, string value,string separator = " - ") {

            string s = value;

            if(string.IsNullOrWhiteSpace(s))
                s = string.Empty;

            string title = s
                .Trim()
                .TrimEnd(separator.ToCharArray());

            if(title.Equals(titleBase,StringComparison.InvariantCultureIgnoreCase)) {
                title = string.Empty;
            }

            if(string.IsNullOrWhiteSpace(title))
                separator = string.Empty;

            return string.Format("{0}{1}{2}",titleBase,separator,title);
        }