CODEWITHSUNDEEP
javastringswingnetbeansjcombobox
theruddy
theruddy

Reputation: 1

Java netbeans form - taking value from combo box

I want to take a value from a combo box and insert it in a method. My problem is the method needs to take variable of type Node.

ShortestPath.computeRoutes(jComboBoxDepFrom.getSelectedItem().toString());

When I try the above code I get the following error:

method computeRoutes in class busplanner.ShortestPath cannot be applied to given types; required: busplanner.Node found: java.lang.String reason: actual argument java.lang.String cannot be converted to busplanner.Node by method invocation conversion

Upvotes: 0

Views: 1150

Answers (1)

Joop Eggen
Joop Eggen

Reputation: 109547

You could place Nodes in the combobox, and use a renderer for the text per Node.

jComboBoxDepFrom.setRenderer(new BasicComboBoxRenderer() {

    @Override
    public Component getListCellRendererComponent(JList list,
                                               Object value,
                                               int index,
                                               boolean isSelected,
                                               boolean cellHasFocus) {
        Node node = (Node)value;
        return super.getListCellRendererComponent(list, node.getText(),
                index, isSelected, cellHasFocus);
    };
});

If the Node.toString does not suffice.

Upvotes: 2

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