Why UI container is no border?

URCap Development
1

I placed a JTabbedPane inside the InstallationNodeView, but it showed no border.

If placed JPanel like this,
JPanel panel_5 = new JPanel();
panel_5.setBorder(new TitledBorder(null, “Group1”, TitledBorder.LEADING, TitledBorder.TOP, null, null));

JPanel is no border too.

2

This works for me:

    JPanel panel = new JPanel();
    TitledBorder border = new TitledBorder("test");
    border.setBorder(BorderFactory.createLineBorder(Color.GRAY));
    panel.setBorder(border);

I think the thing is that borders are set to white in respect to the Basic UI Design. Changing a Titled Borders border color does the trick.

3

The LookAndFeel for the e-series doesn’t give a TitledBorder a LineBorder by default, so as you pointed out you have to give it a line border separately. The LookAndFeel for the CB3 does give a TitledBorder a LineBorder by default.

4

After add color to the border, It works now, thanks.