java - How to get the values from JPanel components like drop down, text fields which are getting created on a fly -
i have jpanel consists of dropdown , text field inside jframe. there button in jframe, when user clicks on button, application adds new jpanel same components i.e. drop down , text field. so, have created function gets called on clicking on button using actionlistener.
everything works fine gui side problem when user done adding jpanels , entering values in these drop downs , text fields, click on submit button. upon clicking on submit button, should able fetch values drop downs , text fields. challenge, since using same functions create jpanels, can't call name values since give me last jpanel values.
any suggestion how should go this? have added screenshot of jframe , function create jpanel. appreciated. thanks.
public static void addpanel(final container pane) { panel1 = new jpanel(); string text = "<html><b>property" + nooftimes + " :</b></html>"; jlabel label = new jlabel(text); label.setpreferredsize(new dimension(80, 30)); panel1.add(label); panel1.add(new jlabel("please enter property")); defaultcomboboxmodel<string> model = new defaultcomboboxmodel<string>(); model.addelement("value1"); model.addelement("value2"); model.addelement("value3"); model.addelement("value4"); model.addelement("value5"); final jcombobox<string> combobox1 = new jcombobox<string>(model); autocompletedecorator.decorate(combobox1); combobox1.setpreferredsize(new dimension(120, 22)); panel1.add(combobox1); final jtextfield txtfield1 = new jtextfield( "please enter value here"); txtfield1.setpreferredsize(new dimension(200, 22)); panel1.add(txtfield1); txtfield1.addfocuslistener(new focuslistener() { public void focusgained(focusevent e) { txtfield1.settext(""); } public void focuslost(focusevent e) { // nothing } }); container.add(panel1); nooftimes++; frame.revalidate(); frame.validate(); frame.repaint(); } screenshot: 
}
you return jpanel , store in list<jpanel>. when click submit-button able iterate through jpanels , components.
public class application { private static list<jpanel> panels = new arraylist<>(); private static container somecontainer = new container(); public static void main(string[] args) { panels.add(addpanel(somecontainer)); panels.add(addpanel(somecontainer)); panels.add(addpanel(somecontainer)); submit(); } public static jpanel addpanel(final container pane) { jpanel panel1 = new jpanel(); // shortened code final jcombobox<string> combobox1 = new jcombobox<string>(); panel1.add(combobox1); final jtextfield txtfield1 = new jtextfield("please enter value here"); txtfield1.settext(string.valueof(math.random())); panel1.add(txtfield1); return panel1; } private static void submit() { (jpanel panel : panels) { component[] components = panel.getcomponents(); (component comp : components) { // cast comp jcombobox / jtextfield values if (comp instanceof jtextfield) { jtextfield textfield = (jtextfield) comp; system.out.println(textfield.gettext()); } } } } }
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