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I want to select the first item on rsListBox before doBeforeComposeChildren() method.

How to select the first item on onSelect$rsListBox below programmatically?

public void onSelect$rsListBox(Event evt) { this.fcstsensorid = (String)rsListBox.getSelectedItem().getValue(); String header = (String)rsListBox.getSelectedItem().getLabel(); this.HeadingTitleReservoir.setLabel(header); System.out.println("Selected id:" + this.fcstsensorid);

}

I want to select the first item on rsListBox before doBeforeComposeChildren() method.

How to select the first item on onSelect$rsListBox below programmatically?

public void onSelect$rsListBox(Event evt) {
        this.fcstsensorid this.fcst_sensor_id  = (String)rsListBox.getSelectedItem().getValue();
     String header = (String)rsListBox.getSelectedItem().getLabel();
     this.HeadingTitleReservoir.setLabel(header);
     System.out.println("Selected  id:" + this.fcstsensorid);
 
this.fcst_sensor_id);
}