MessageDialogWithToggle的用法，显示对话框并记住用户的选择

            boolean set = true;
            if (cpj != null) {
                String setting = IntelliFmea.getDefault().getPreferenceStore()
                        .getString(IntelliFmea.TG_SETCURRENT);
                if (MessageDialogWithToggle.ALWAYS.equals(setting)) {
                    
                }else {
                    MessageDialogWithToggle mdtw = MessageDialogWithToggle.openYesNoQuestion(HandlerUtil
                            .getActiveShell(event), "打开", "已经打开项目："
                            + cpj.getDTObject() + "\n将切换为：" + dto
                            + "\n项目中的编辑视图都将切换到新的工作项目中。确定打开新的工作项目吗？",
                            "以后不再询问", false, IntelliFmea.getDefault()
                            .getPreferenceStore(),
                            IntelliFmea.TG_SETCURRENT);
                    if(mdtw.getReturnCode() == SWT.YES){
                        set = true;
                    }
                }
            }
            if (set)
                Apqp.getDefault().setWorkingProject(new Project(dto));