private void LoadCBC()
{
string countryCode = ddlCountryList.SelectedIndex > 0 ? ddlCountryList.SelectedValue : null;
string reportingPeriod = ddlReportingPeriod.SelectedIndex > 0 ? ddlReportingPeriod.SelectedValue : null;
var cbcr = DBReadManager.GetPackagesToVoid(countryCode, reportingPeriod);
Session["subdata"] = cbcr;
gvCBC.Bind(cbcr);
}