void fillCompany()
{
try
{
DataTable dt = ClassSetting.selectComOfCity((int)cmbCity.SelectedValue, (int)cmbCountry.SelectedValue);
cmbCompany.DataSource = dt;
cmbCompany.DisplayMember = "company_name";
cmbCompany.ValueMember = "company_id";
}
catch (Exception) { }
}
