Removing all Items from a combo box in Java

Question

I need to remove all items from the combo box

    int itemCount = combo.getItemCount();

    for(int i=0;i

        

Answer 1

Usually it happens because you have an event associated JComboBox. It is solved if you have control item in the JComboBox to act, for example:

jComboBoxExample.addActionListener (new ActionListener () {
   public void actionPerformed (ActionEvent e) {
     do_run ();
   }
});



public void do_run() {
  int n=jComboBoxPerfilDocumentos.getItemCount(); <--THIS IS THE SOLUTION
  if (n> 0) { 
    String x = jComboBoxPerfilDocumentos.getSelectedItem (). ToString ();
  }
}