Question

您好我正在尝试在Vaadin框架中编写网格过滤器。我的目标是用户有一个带下拉列表的组合框，可以选择他只想看3周，6周，9周前的条目。我写了它，但我有一个问题因为它不能作为默认过滤器。我的意思是，如果我打开一个页面，网格显示没有过滤器。我需要先点击按钮。是否可以默认过滤网格，仅显示3周的条目？我该如何管理？

     final ComboBox<Integer> timePeriodSelector = new ComboBox<>("Time Filter", Arrays.asList(3, 6, 9);
    timePeriodSelector.setEmptySelectionAllowed(false);
    timePeriodSelector.setTextInputAllowed(false);
    timePeriodSelector.setValue(3);
    timePeriodSelector.addValueChangeListener(this::onWeekChange);

...

private void onWeekChange(HasValue.ValueChangeEvent<Integer> event) {

    switch (event.getValue()) {
    case 3:
        dateToCompare = LocalDate.now().minusDays(21);
        break;
    case 6:
        dateToCompare = LocalDate.now().minusDays(42);
        break;
    case 9:
        dateToCompare = LocalDate.now().minusDays(63);
        break;
    default:
        dateToCompare = LocalDate.now().plusDays(21);
    }

    ListDataProvider<CcEvent> dataProvider = (ListDataProvider<CcEvent>) eventsOverview.getDataProvider();
    dataProvider.setFilter(CcEvent::getReportingDate,
            date -> compareDates(date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate(), dateToCompare));
}

private Boolean compareDates(LocalDate dateFromTable, LocalDate dateFromFilter) {
    return dateFromTable.isBefore(dateFromFilter);
}

Answer 1

这段代码看起来不错，是网格过滤器的意图。不过，您只需通过Function IncidentCancellAllActions() Dim Rowcnt Rowcnt = SwfWindow("VisionCommandClient").SwfObject("VisionCC_Incident_ActionsTab_SWO").WpfWindow("VisionCC_Incident_ActionsTab_WpfWin").WpfTable("VisionCC_Incident_ActionsTab_WpfTable").RowCount If Rowcnt > 0 Then SwfWindow("VisionCommandClient").SwfObject("VisionCC_Incident_ActionsTab_SWO").WpfWindow("VisionCC_Incident_ActionsTab_WpfWin").WpfTable("VisionCC_Incident_ActionsTab_WpfTable").ActivateCell SendFromKeyboard("1-SHFT-F10") wait 5 'SwfWindow("VisionCommandClient").WpfWindow("VisionCC_ResourceStatusList_WpfWin_2").WpfMenu("VisionCC_Action_WPM").Select "Cancel All" msgbox SwfWindow("VisionCommandClient").WpfWindow("VisionCC_ResourceStatusList_WpfWin_2").WpfMenu("VisionCC_Action_WPM").ShowContextMenu SwfWindow("VisionCommandClient").WpfWindow("VisionCC_ResourceStatusList_WpfWin_2").WpfMenu("VisionCC_Action_WPM").Select "Cancel All" wait 2 Else Exit Function End If End Function电话切换setValue来电。

在设置值之前设置侦听器可确保触发addValueChangeListener！

如何过滤Vaadin网格作为默认值

1 个答案: