(Card Layout)为JComboBox设置CardPanels的卡片名称

Question

伙计们。我的项目设计结合了硬编码设计和使用 Netbeans 的 GUI Builder 进行的设计。由于我们落后于计划，我决定使用 GUI Builder 进行 RAD 和快速设计。

所以我的问题是在为面板使用卡片布局时如何为卡片面板分配名称。我知道如果不使用 GUI Builder，您可以简单地写 cardContainerPanel.add(card1Panel,"card1")。 card1 作为 card1Panel 的 String 标识符。但我希望能够做的是传递 String variable 作为卡名。

喜欢，

String card1 = "card1";

然后
cardContainerPanel.add(card1Panel, card1)

1.) 我如何在 Netbeans GUI Builder 上使用面板的 Properties 选项执行此操作，因为它仅将您在 Card Name 上键入的内容作为字符串

我需要在 JComboBox 的 itemChange 活动期间切换到不同的卡片。

这是我到目前为止所写的内容。

private void settingsComboBoxItemStateChanged(java.awt.event.ItemEvent evt) {                                                  
        CardLayout cl = (CardLayout)(cardContainerPanel.getLayout());
        cl.show(cardContainerPanel, (String)evt.getItem());
    }                                                 

    private void loadSettingsComboxBoxModel(){
        String HOME = "Home";
        String ADMIN = "Administration";
        String ADMIN_CURC = "Administration > Curriculum";
        String ADMIN_DISCOUNTS = "Administration > Discounts";
        String ADMIN_SECTIONS = "Administration > Sections";
        String ADMIN_USERS = "Administration > Users";
        String ADMIN_SCHED = "Administration > Schedule";
        String ADMIN_YRLEVEL = "Administration > Year Level";
        String PAYMENT = "Payment";
        String REGISTRATION = "Registration";
        String STUDENTS = "Students";
        String FACULTY = "Faculty";
        String REPORTS = "Reports";
        String SECTIONS = "Sections";

        String settingsComboBoxItems[] = 
            {HOME,ADMIN,ADMIN_CURC,ADMIN_DISCOUNTS,
                ADMIN_SECTIONS,ADMIN_USERS,ADMIN_SCHED,
                ADMIN_YRLEVEL,PAYMENT,REGISTRATION,STUDENTS,FACULTY,REPORTS,SECTIONS};
        DefaultComboBoxModel dcm = new DefaultComboBoxModel(settingsComboBoxItems);
        settingsComboBox.setModel(dcm); 
    }

如有任何帮助，我将不胜感激。

谢谢。

Answer 1

在 IDE 中硬编码卡名是无关紧要的。

相关的是当你想交换卡片时使用的卡片名称。在这种情况下，您没有理由不能使用变量来指定要交换到的卡名称。

实际上，您似乎是在使用组合框 select 要显示的卡片。所以你需要做的就是确保卡片名称与组合框中显示的值相同。

然后在您的 ItemListener 中，您只需使用以下内容来交换卡片：

cardLayout.show(cards, (String)evt.getItem());

有关工作示例，请参阅 How to Use CardLayout 上的 Swing 教程部分。

Answer 2

我能够使用 addLayoutComponent() 方法解决它，该方法将面板添加到 Card Layout 对象并接受字符串变量作为其第二个参数。

        String HOME = "Home";
        String ADMIN = "Administration";
        String ADMIN_CURC = "Administration > Curriculum";
        String ADMIN_DISCOUNTS = "Administration > Discounts";
        String ADMIN_SECTIONS = "Administration > Sections";
        String ADMIN_USERS = "Administration > Users";
        String ADMIN_SCHED = "Administration > Schedule";
        String ADMIN_YRLEVEL = "Administration > Year Level";
        String PAYMENT = "Payment";
        String REGISTRATION = "Registration";
        String STUDENTS = "Students";
        String FACULTY = "Faculty";
        String REPORTS = "Reports";
        String SECTIONS = "Sections";

        String settingsComboBoxItems[] = 
            {HOME,ADMIN,ADMIN_CURC,ADMIN_DISCOUNTS,
                ADMIN_SECTIONS,ADMIN_USERS,ADMIN_SCHED,
                ADMIN_YRLEVEL,PAYMENT,REGISTRATION,STUDENTS,FACULTY,REPORTS,SECTIONS};
        DefaultComboBoxModel dcm = new DefaultComboBoxModel(settingsComboBoxItems);

//constructor
    public UserManagementGUI() {
            initComponents();
            loadUsersList();
            settingsComboBox.setModel(dcm);
        }

private void settingsComboBoxItemStateChanged(java.awt.event.ItemEvent evt) {                                                  
        CardLayout cl = (CardLayout)(cardContainerPanel.getLayout());
        cl.addLayoutComponent(homePermissionsPanel, HOME);
        cl.addLayoutComponent(administrationPermissionsPanel, ADMIN);
        cl.show(cardContainerPanel, (String)evt.getItem());
    }

(Card Layout)为JComboBox设置CardPanels的卡片名称

(Card Layout) Setting Card Name of CardPanels for JComboBox

java

layout

swing

jcombobox

cardlayout