Ax7 FormDataSource init method PostEventHandler (PostEventHandler,OnActivated)

class NEC_WHSWorkTable
{
   

    /// <summary>
    ///
    /// </summary>
    /// <param name="args"></param>
    [PostHandlerFor(formStr(WHSWorkTableListPage), formMethodStr(WHSWorkTableListPage, init))]
    public static void WHSWorkTableListPage_Post_init(XppPrePostArgs args)
    {
        FormRun        sender=args.getThis();

        FormControl     printer= sender.design(0).controlName("WorkTable_Print");
        printer.visible(false);
        printer.enabled(false);
    }

    /// <summary>
    ///
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    [FormDataSourceEventHandler(formDataSourceStr(WHSWorkTableListPage, WHSWorkTable), FormDataSourceEventType::Activated)]
    public static void WHSWorkTable_OnActivated(FormDataSource sender, FormDataSourceEventArgs e)
    {
        WHSWorkTable               rec;
        boolean                    flag = false;
        WHSWorkTable               whsWorkTable = sender.cursor();
        FormDataSource             whsWorkTable_ds  = sender.formRun().dataSource("whsWorkTable");
        FormRun                    element = sender.formRun();
        FormControl                printinWork    = element.design(0).controlName("NECWorkTable_Print");

        for (rec = getFirstSelection(whsWorkTable_ds); rec; rec = whsWorkTable_ds.getNext())
        {
            if(rec.WorkId && rec.WorkStatus == WHSWorkStatus::Cancelled)
            {
                printinWork.enabled(false);
            }
            else
            {
                printinWork.enabled(true);
            }
        }
    }

}