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.
Am Samstag, 14. April 2012 17:06:08 UTC+2 schrieb tong123123:
>
> I think you mean add a getter and setter in CompositePanel, but the
> problem is how to access it in HATestPanel?
> as I don't know the variable name of each CompositePanel.
> just like I click the button three times, then what is the variaible name
> of these 3 compositePanel? although in each click handler its name is
> compositePanel.
>
>
> Jens於 2012年4月14日星期六UTC+8下午10時36分21秒寫道：
>
>> Store your widgets in fields and add getter/setter methods so you can
>> access their data.
>>
>> Also in your ClickHandler instead of:
>>
>> ((HATestPanel)((Button)
>> event.getSource()).getParent()).add(compositePanel);
>>
>> you can simply do
>>
>> add(compositePanel) or HATextPanel.this.add(compositePanel) if you like.
>>
>> -- J.
>>
>> Am Samstag, 14. April 2012 16:17:36 UTC+2 schrieb tong123123:
>>>
>>> as shown in the attached image, if I want to access the value of the
>>> textbox with value "value2" (the textbox in the second row after the "add"
>>> button"), how to do it as seem there is no a specific name to access it.
>>>
>>> the code is as follow:
>>>
>>>> package com.mycompany.project.client;
>>>>
>>>> import com.google.gwt.event.dom.client.ClickEvent;
>>>> import com.google.gwt.event.dom.client.ClickHandler;
>>>> import com.google.gwt.user.client.ui.Button;
>>>> import com.google.gwt.user.client.ui.FlowPanel;
>>>> import com.google.gwt.user.client.ui.Widget;
>>>>
>>>> public class HATestPanel extends FlowPanel{
>>>>
>>>> Button btnAdd = new Button("Add");
>>>> Button btnListWidget = new Button("List Widget");
>>>>
>>>> public void onLoad(){
>>>>
>>>> this.add(btnAdd);
>>>> btnAdd.addClickHandler(new ClickHandler(){
>>>>
>>>> @Override
>>>> public void onClick(ClickEvent event) {
>>>> // TODO Auto-generated method stub
>>>> CompositePanel compositePanel = new CompositePanel();
>>>> ((HATestPanel)((Button)
>>>> event.getSource()).getParent()).add(compositePanel);
>>>> }
>>>>
>>>> });
>>>>
>>>> }
>>>> }
>>>>
>>>
>>> and the implementation of CompositePanel is as follow:
>>>
>>>> package com.mycompany.project.client;
>>>>
>>>> import com.google.gwt.user.client.ui.FlowPanel;
>>>> import com.google.gwt.user.client.ui.HorizontalPanel;
>>>> import com.google.gwt.user.client.ui.Label;
>>>> import com.google.gwt.user.client.ui.ListBox;
>>>> import com.google.gwt.user.client.ui.TextBox;
>>>>
>>>> public class CompositePanel extends HorizontalPanel{
>>>>
>>>> protected void onLoad(){
>>>> ListBox lb = new ListBox();
>>>> TextBox txt2 = new TextBox();
>>>> lb.addItem("field1");
>>>> lb.addItem("field2");
>>>> lb.addItem("field3");
>>>> this.add(lb);
>>>> this.add(txt2);
>>>> }
>>>>
>>>> }
>>>>
>>>
>>> maybe my design is poor, any better method suggested?
>>> in reality, the listbox is used for user select "searc field", and the
>>> textbox is for user enter search value for that search field.
>>>
>>>
>>>
>>>
>>>
>>
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