Thread: How do you apply GridBagLayout constraints to existing controls

I use the GUI builder of NetBeans and put a panel on a frame and controls on the panel.
How do I then apply GridBagLayout to these controls?
I have tried re-adding the control to the panel in code but in this example changing the x,y to anything other than 0,0 makes my label disappear.

    public MyFrame() {           // constructor 
        initComponents();
        InitInputPanel();
 
    }
    private void InitInputPanel(){
        JPanel p = this.InputPanel; 
        GridBagLayout gbl = new GridBagLayout();
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.gridwidth = 11;
        gbc.gridheight = 84;
        gbc.gridx = 1;
        gbc.gridy = 80;
        p.add(this.lblCustomerName, gbc);

I found lots of help using GridBagLayout and all of them build the control in code and add it to the frame.
How do I use GridBagLayout with already placed controls?