private async void Cb_customer_SelectionChanged(object sender, SelectionChangedEventArgs e)
{//select customer
try
{
if (cb_customer.SelectedIndex != -1)
{
cb_package.IsEnabled = true;
cb_period.IsEnabled = true;
if (MainWindow.userLogin.type != "ag")
{
try
{
await FillCombo.fillPackageByCustomer(cb_package, (int)cb_customer.SelectedValue);
cb_package.SelectedValue = oldPackageId;
}
catch { }
}
else
{
await FillCombo.fillAgentPackage(cb_package, MainWindow.userLogin.userId);
}
}
}
catch (Exception ex)
{
HelpClass.ExceptionMessage(ex, this);
}
}