protected void btnAdd_Click(object sender, EventArgs e)
{
Customer customer = customerProvider.Get(txtBarcode.Text);
if (customer != null)
{
try
{
classProvider.AddParticipant(
Convert.ToInt32(ViewState["ClassRunningID"]),
customer.ID);
gvwData.DataBind();
txtBarcode.Text = String.Empty;
CountTotalParticipants();
}
catch (Exception ex)
{
WebFormHelper.SetLabelTextWithCssClass(lblMessage3, ex.Message, LabelStyleNames.ErrorMessage);
}
}
}