System.Configuration.ClientConfigPaths.CombineIfValid C# (CSharp) Метод

        private string CombineIfValid(string path1, string path2) {
            string returnPath = null;

            if (path1 != null && path2 != null) {
                try {
                    string combinedPath = Path.Combine(path1, path2);
                    if (combinedPath.Length < MAX_PATH) {
                        returnPath = combinedPath;
                    }
                }
                catch {
                }
            }
            
            return returnPath;
        }