public static string AddDirectoryToDirectoryPath(string fromDirectoryPath, string toDirectoryPath) { string sFullDirectoryPath = toDirectoryPath; //deal with when absoluteuripath ends with a delimiter or file name if (Path.HasExtension(toDirectoryPath)) { sFullDirectoryPath = GetDirectoryName(toDirectoryPath); } char[] cDelimiter = FileStorageIO.GetCDelimiterForFileStorage(fromDirectoryPath); string sDelimiter = FileStorageIO.GetDelimiterForFileStorage(fromDirectoryPath); string sLastDirectoryName = string.Empty; if (fromDirectoryPath.EndsWith(sDelimiter)) { sLastDirectoryName = GeneralHelpers.GetSubstringFromEnd( fromDirectoryPath, cDelimiter, 2); } else { sLastDirectoryName = GeneralHelpers.GetSubstringFromEnd( fromDirectoryPath, cDelimiter, 1); } string sToDelimiter = FileStorageIO.GetDelimiterForFileStorage(toDirectoryPath); string sLastDirectoryDelimited = string.Concat(sToDelimiter, sLastDirectoryName, sToDelimiter); if (!sFullDirectoryPath.EndsWith(sLastDirectoryDelimited)) { sFullDirectoryPath = Path.Combine(sFullDirectoryPath, sLastDirectoryName); if (!sFullDirectoryPath.EndsWith(sToDelimiter)) { sFullDirectoryPath = string.Concat(sFullDirectoryPath, sToDelimiter); } } return(sFullDirectoryPath); }