gwt dynamic adding textbox

 @UiHandler("addDynamicTextboxbutton")
  void addMoreTextbox(ClickEvent event) {


     textboxplaceholder.add(new TextBox(),"textboxplace");

 }

when addDynamicTextboxbutton button is clicked, this method is executed and开发者_运维知识库 new textbox is created. how to have another button, so that when click, will get all the values from each of the "textbox()" ? or is it necessary to put name "new textbox("name")" so that i can get all their values? what is the best practice way to do this?

If textboxplaceholder is and extend of a ComplexPanel, for example FlowPanel you could simply iterate over the children of the FlowPanel:

for (Widget w: textboxplaceholder) {
   if (w instanceof TextBox) {
     // do something value: ((TextBox)w).getValue();
   }
}

You could use a collection to store the newly added TextBox from which you can later get all the values. Something like this:

public class Test extends Composite {

    private static TestUiBinder uiBinder = GWT.create(TestUiBinder.class);

    interface TestUiBinder extends UiBinder<Widget, Test> {}

    @UiField
    FlowPanel textboxplaceholder;
    @UiField
    Button addDynamicTextboxbutton;
    private LinkedList<TextBox> boxes;

    public Test() {
        initWidget(uiBinder.createAndBindUi(this));
        boxes = new LinkedList<TextBox>();
    }

    @UiHandler("addDynamicTextboxbutton")
    void addMoreTextbox(ClickEvent event) {
        TextBox box = new TextBox();
        textboxplaceholder.add(box);
        boxes.add(box);
    }
}

Iterate over the boxes stored in boxes to get all the values.