private void btnPlayLecture_Click(object sender, EventArgs e)
        {
            UpdateLecturePlayButton();
            if (imageHolder.Tag == null)
            {
                return;
            }
            String strAudioName         = imageHolder.Tag.ToString();
            String strPath              = FileUtilities.ExtractDirectoryPath(strAudioName);
            String strSelectedAudioItem = cmbLectureList.SelectedItem.ToString();

            strAudioName             = strPath + strSelectedAudioItem;
            m_objRecordedAudioPlayer = new PTEAudioPlayerWav(strAudioName);
            m_objRecordedAudioPlayer.PlayAudio();
        }
        private void buttonPlay_Click(object sender, EventArgs e)
        {
            UpdateDescribeImagePlayButton();
            if (imageHolder.Tag == null)
            {
                return;
            }
            String strAudioName         = imageHolder.Tag.ToString();
            String strPath              = FileUtilities.ExtractDirectoryPath(strAudioName);
            String strSelectedAudioItem = cmbDIRecordings.SelectedItem.ToString();

            strAudioName = strPath + strSelectedAudioItem;
            //double dAudioLength = PTEAudio.GetAudioLength(strAudioName);

            m_objRecordedAudioPlayer = new PTEAudioPlayerWav(strAudioName);
            m_objRecordedAudioPlayer.PlayAudio();
        }