Border with LestCellRenderer

[Gajesh Tripathi]

How to give border with ListCellRenderer.
I tried it using following code but I failed.

Suppose

lstFindResults

is an instanceof JList

((DefaultListCellRenderer)lstFindResults.getCellRenderer())
            .setBorder(BorderFactory.createLineBorder(Color.BLACK));

PLEASE SUGGEST ME

[RamyaSivakanth]

Can u please send me the piece of code for better understanding?

[DarrylBurke]

Subclass DefaultListCellRenderer, create the desired Border as a static final field and setBorder in a getListCellRendererComponent override

public Component getListCellRendererComponent(JList list, Object value, int index,
      boolean isSelected, boolean cellHasFocus) {
   super.getListCellRendererComponent(list, value, index,
      isSelected, cellHasFocus);
   setBorder(BORDER);
   return this;
}

db

[Gajesh Tripathi]

Subclass DefaultListCellRenderer, create the desired Border as a static final field and setBorder in a getListCellRendererComponent override

public Component getListCellRendererComponent(JList list, Object value, int index,
      boolean isSelected, boolean cellHasFocus) {
   super.getListCellRendererComponent(list, value, index,
      isSelected, cellHasFocus);
   setBorder(BORDER);
   return this;
}

db

Thanks Derry,
Your solution is working fine.
My Problem (Related to Border of ListCellRenderer) has been solved.

But still, I want to know that why following code is not working:-

((DefaultListCellRenderer)lstFindResults.getCellRenderer())
            .setBorder(BorderFactory.createLineBorder(Color.BLACK));

[DarrylBurke]

If you really want to know, trace the execution of code through JList / BasicListUI / DefaultListCellRenderer and somewhere you'll find that a border is being set that removes the custom border.

The only way you can use a custom border (and many other properties) with most renderers is to set it AFTER getting the default properties with a call to the super method.

db

[Gajesh Tripathi]

If you really want to know, trace the execution of code through JList / BasicListUI / DefaultListCellRenderer and somewhere you'll find that a border is being set that removes the custom border.

The only way you can use a custom border (and many other properties) with most renderers is to set it AFTER getting the default properties with a call to the super method.

Now I understand that what happenings behind my code

Thanks