Just bind the textfields to the selectedNode, then they are always
up-to-date.
BTW a LDM helps if #getNodesStorage() is an expensive call:
Form form = new Form(NODE_FORM_ID);
addOrReplace(form);
final IModel<List<Node>> nodeStorage = new
LoadableDetachableModel<List<Node>> {
public List<Node> load() {
return nodeManager.getNodesStorage();
}
};
if (!nodeStorage.getObject().isEmpty()) {
Node defaultSelected = nodeStorage.getObject().get(0);
this.selectedNode = defaultSelected;
this.lastSelectedNode = defaultSelected;
}
form.add(new TextField<String>(NODE_TITLE_ID, new
PropertyModel(this, "selectedNode.title")).setOutputMarkupId(true));
form.add(new TextField<String>(NODE_TEXT_ID, new
PropertyModel(this, "selectedNode.text")).setOutputMarkupId(true));
nodeList = new ListChoice<Node>(NODES_LIST_ID, new
PropertyModel<Node>(this, "selectedNode"), nodeStorage);
nodeList.add(new AjaxFormComponentUpdatingBehavior("onchange") {
private static final long serialVersionUID = 2604279030812705608L;
protected void onUpdate(AjaxRequestTarget target) {
// nothing to do here
onSelectionChanged();
updateForm(target);
}
});
nodeList.setOutputMarkupId(true);
nodeList.setChoiceRenderer(new IChoiceRenderer<Node>() {
private static final long serialVersionUID = -4490231471856685398L;
@Override
public Object getDisplayValue(Node node) {
return node.getTitle();
}
@Override
public String getIdValue(Node node, int i) {
return String.valueOf(node.getId());
}
});
form.add(nodeList);
On 12/12/2012 01:29 PM, Mandrake wrote:
Hi to all. I`m new to Apache wicket and i need your help. I wrote small
application but i cannot resolve one problem. Here is my code:
Form form = new Form(NODE_FORM_ID);
addOrReplace(form);
List<Node> nodeStorage = nodeManager.getNodesStorage();
if(!CollectionUtils.isEmpty(nodeStorage)) {
Node defaultSelected = nodeStorage.get(0);
this.selectedNode = defaultSelected;
this.lastSelectedNode = defaultSelected;
}
nodeTitle = new TextField<String>(NODE_TITLE_ID, new
Model(selectedNode.getTitle()), String.class);
nodeTitle.setOutputMarkupId(true);
form.add(nodeTitle);
nodeText = new TextArea<String>(NODE_TEXT_ID, new
Model(selectedNode.getText()));
nodeText.setType(String.class);
nodeText.setOutputMarkupId(true);
form.add(nodeText);
nodeList = new ListChoice<Node>(NODES_LIST_ID, new
PropertyModel<Node>(this, "selectedNode"), nodeManager.getNodesStorage());
nodeList.add(new AjaxFormComponentUpdatingBehavior("onchange") {
private static final long serialVersionUID =
2604279030812705608L;
protected void onUpdate(AjaxRequestTarget target) {
*//
// How to get actual value of "nodeTitle" and "nodeText"
//*
onSelectionChanged();
updateForm(target);
}
});
nodeList.setOutputMarkupId(true);
nodeList.setChoiceRenderer(new IChoiceRenderer<Node>() {
private static final long serialVersionUID =
-4490231471856685398L;
@Override
public Object getDisplayValue(Node node) {
return node.getTitle();
}
@Override
public String getIdValue(Node node, int i) {
return String.valueOf(node.getId());
}
});
form.add(nodeList);
As i think, I must put to ajax request "nodeTitle" and "nodeText". But i
don`t know how to do that. Please help me!
P.S. Thanks to all responded! I hope you!
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