如何使用AJAX更新Wicket DataView? [英] How can I update a Wicket DataView with AJAX?
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问题描述
我需要按Wicket DataView
中显示的 PsDoctrans
的用户列表进行AJAX完全过滤.
I need to AJAXfully filter by users list of PsDoctrans
which is shown in a Wicket DataView
.
final TextField txtName= new TextField("user");
final PSDocDP dp = new PSDocDP("username");
DataView<PsDoctrans> dataView = new DataView<PsDoctrans>("unproc", dp)
{
@Override
protected void populateItem(final Item<PsDoctrans> item)
...
};
PSDocDP
是:
public class PSDocDP extends SortableDataProvider<PsDoctrans>
{...}
final WebMarkupContainer wmc = new WebMarkupContainer("container");
wmc.add(dataView);
wmc.setOutputMarkupId(true);
AjaxButton butFind=new AjaxButton("find"){
@Override
protected void onSubmit(AjaxRequestTarget target, Form<?> form)
{
String value=(String)txtName.getModelObject();
dp = new PSDocDP(value);
target.addComponent(wmc);
}
};
提交后,没有任何变化.该程序显示了一些数据,但未过滤.如何进行过滤?
After submitting, nothing changes. The program shows some data, but it isn't filtering. How can I make filtering happen?
推荐答案
我使用与此类似的构造,因此它应该可以工作.
I use constructions comparable to this, so it should work.
您是否真的在回调中创建了一个新的"dp"对象.您应该只更改数据提供者的状态-组件应如何获得更改的提供者.
Do you really create a new "dp" object in the callback. You should simply change the state of the data provider - how should the component ever get the changed provider.
@Override
protected void onSubmit(AjaxRequestTarget target, Form<?> form)
{
String value=(String)txtName.getModelObject();
--> dp.setName(value);
target.addComponent(wmc);
}
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