thanks, now my implementation is > public class HATestPanel extends FlowPanel{ > > Button btnAdd = new Button("Add"); > Button btnListWidget = new Button("submit"); > > public void onLoad(){ > > this.add(btnAdd); > this.add(btnListWidget); > btnAdd.addClickHandler(new ClickHandler(){ > > @Override > public void onClick(ClickEvent event) { > // TODO Auto-generated method stub > CompositePanel compositePanel = new CompositePanel(); > HATestPanel.this.add(compositePanel); > } > > }); > > > btnListWidget.addClickHandler(new ClickHandler(){ > > @Override > public void onClick(ClickEvent event) { > // TODO Auto-generated method stub > for (int i=0; i<HATestPanel.this.getWidgetCount();i++){ > if (HATestPanel.this.getWidget(i) instanceof CompositePanel){ > ListBox lb =((CompositePanel)HATestPanel.this.getWidget(i)).getLb(); > TextBox txt = > ((CompositePanel)HATestPanel.this.getWidget(i)).getTxt2(); > if > (lb.getItemText(lb.getSelectedIndex()).equalsIgnoreCase("field1")){ > System.out.println(txt.getText()); > // validation txt > }else if > (lb.getItemText(lb.getSelectedIndex()).equalsIgnoreCase("field2")){ > System.out.println(txt.getText()); > // validation txt > } > } > } > } > > }); > > } > > } > But there is still some problem, if I want to add a delete button after each row, is it very difficult? Or the easier method is add a checkbox before the listbox in class CompositePanel and then add a "delete" button (one and only one for the HATestPanel, not per row) to the HATestPanel? I see this forum attachment page, it has a delete link after the browse button of each attachment row, but I have no idea how could this be implemented in my case?
Jens於 2012年4月14日星期六UTC+8下午11時13分39秒寫道: > Store them in a separate list or iterate through all child widgets of your > HATestPanel using FlowPanel.getWidgetCount() and FlowPanel.getWidget(int > index). For each widget check if its a CompositePanel, cast it and call its > getter to get the value. > > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/r8DOFF8Fy8gJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.