private string ReadFile(string filePath)
        {
            //this verse is loaded for the first time so fill it from the text file
            var ResrouceStream = Application.GetResourceStream(new Uri(filePath, UriKind.Relative));
            if (ResrouceStream != null)
            {
                Stream myFileStream = ResrouceStream.Stream;
                if (myFileStream.CanRead)
                {
                    StreamReader myStreamReader = new StreamReader(myFileStream);
 
                    //read the content here
                    return myStreamReader.ReadToEnd();
                }
            }
            return "NULL";
        }