Seam问题中的DataModel和DataModelSelection

发布于 2024-10-30 17:43:34 字数 962 浏览 6 评论 0原文

我喜欢在管理组件中使用 DataModel 和 DataModelSelection 注释。

@Name("myComponent")
@Scope(CONVERSATION)
public class MyComponent {

   @DataModel
   private List<Item> myDataModel;


   @DataModelSelection
   @Out(required=false) 
   private Item selectedItem;


   ....

}

假设我想制作一个模式面板，在其中显示所选项目的数据。不幸的是，注释为 DataModelSelection 的属性“selectedItem”在模式面板中为空......

 <rich:dataGrid value="#{myDataModel}" var="something">
    ....
    <a4j:commandButton oncomplete="show my edit panel" ..../>
    ....
 </rich:dataGrid>

 <rich:modalPanel>
    ....
    <h:inputText value="myComponent.selectedItem"/>
 </rich:modalPanel>

是否有任何可能的方法可以在数据网格之外使用所选数据？

另一件事是，我无法在 dataGrid value 属性中使用“myComponent.myDataModel”，而只能使用 myDataModel。在其他情况下，它不能正常工作，如果我想使用某个类作为另一个类的基础，可能会出现问题。

有什么建议吗？

提前致谢。

原文

I wolud like use DataModel and DataModelSelection annotations in my managing component.

@Name("myComponent")
@Scope(CONVERSATION)
public class MyComponent {

   @DataModel
   private List<Item> myDataModel;


   @DataModelSelection
   @Out(required=false) 
   private Item selectedItem;


   ....

}

Lets assume that I want to make a modal panel in which I would like to show the selected item data.
Unfortunatelly the property 'selectedItem' which is annotated DataModelSelection is null in modal panel....

 <rich:dataGrid value="#{myDataModel}" var="something">
    ....
    <a4j:commandButton oncomplete="show my edit panel" ..../>
    ....
 </rich:dataGrid>

 <rich:modalPanel>
    ....
    <h:inputText value="myComponent.selectedItem"/>
 </rich:modalPanel>

Is there any possible way to use the selected data outside the data grid?

Another thing is that I can not use the "myComponent.myDataModel" in the dataGrid value property, but simply myDataModel. In other cases it doesn't work fine what may be problematic if I would like to use some class for base to the other.

Any suggestions?

Thanks in advance.

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