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我有兩個單選按鈕（值A或B）和下面的調色板區域。當選擇A值時我想顯示調色板，選擇B時隱藏它，所以ajax更新。 如何做到這一點？ 我對現有項目使用舊的Tapestry 4.0.2，所以我無法升級。如何用Tapestry 4.0中的單選按鈕觸發ajax更新？
這裏是我到目前爲止的代碼
標記：
<span jwcid="[email protected]" selected="ognl:modelOption">
<tr>
<td class="dataLabel" width="15%">
</td>
<td>
<input type="radio" jwcid="@Radio" value="ognl:@[email protected]"/> All models (Default)
</td>
</tr>
<tr>
<td class="dataLabel" width="15%">
</td>
<td>
<input type="radio" jwcid="@Radio" value="ognl:@[email protected]"/> Specific models
</td>
</tr>
</span>
<span jwcid="@If" condition="ognl:specificDeviceModels">
<tr>
<td class="dataLabel" width="15%">
<span key="supportedDeviceModelsLabel">Supported device models:</span>:
</td>
<td>
<div class="bundle_palette">
<span jwcid="palette"/>
</div>
</td>
</tr>
</span>
的Java：
public static final Integer ALL = new Integer(1);
public static final Integer SPECIFIC = new Integer(2);
public abstract Integer getModelOption();
public abstract List<DeviceModel> getSelectedDeviceModels();
public abstract void setSelectedDeviceModels(List<DeviceModel> deviceModels);
public abstract void setDeviceModels(List<DeviceModel> deviceModels);
public abstract List<DeviceModel> getDeviceModels();
@Component(type = "contrib:Palette", bindings = {"selected=selectedDeviceModels", "model=deviceModel"})
public abstract Palette getPalette();
public IPropertySelectionModel getDeviceModel() {
return new OptionValueSelectionModel(getDeviceModels()).sorted();
}
public void pageBeginRender(PageEvent event) {
setDeviceModels(getDeviceService().findDeviceModels(null));
}
public boolean getSpecificDeviceModels() {
//here I need to set boolean value and return it
return true/false;
}