private void dgvVolunteers_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            string id = dgvVolunteers.CurrentRow.Cells["fldID"].Value.ToString();
            this.Tag = "edit";
            Volunteers volunteer = new Volunteers(id);
            btnSave.Tag = volunteer;
            txtFirstName.Text = volunteer.getFirstName();
            txtLastName.Text = volunteer.getLastName();
            txtNickName.Text = volunteer.getNickName();
            txtNameOnId.Text = volunteer.getNameOnID();
            txtMobile.Text = volunteer.getMobile();
            txtEmail.Text = volunteer.getEmail();
            txtStreet.Text = volunteer.getStreet();
            txtCity.Text = volunteer.getCity();
            txtVGL.Text = volunteer.getVGL();
            txtContactNo.Text = volunteer.getVGLContact();
            //cboService.Text = js.Lookup("fldEventTitle", "tblEvent", "fldID='" + volunteer.getService() + "'");
            //cboWeek.Text = volunteer.getWeek();
            //cboClass.Text = js.Lookup("fldGroup", "tblGroup", "fldID='" + volunteer.getClass() + "'");
            chkLeading.Checked = volunteer.getLeading();
            txtNFCCode.Text = volunteer.getNFCCode();
            Picture = volunteer.getPicPath();

            string imageFullPath = AppSettingsHelper.GetAppSettingsValue("PicturePath") + @"\volunteer\" + Picture;

            if (System.IO.File.Exists(imageFullPath))
            {
                pictureBox1.Image = Image.FromFile(imageFullPath);
            }
            else
            {
                pictureBox1.Image = Image.FromFile(AppSettingsHelper.GetAppSettingsValue("PicturePath") + @"\download.jpg");
            }
        }