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Posted to users@wicket.apache.org by Mandrake <ig...@gmail.com> on 2012/12/12 13:29:37 UTC
ListChoice + Ajax
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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Re: ListChoice + Ajax
Posted by Mandrake <ig...@gmail.com>.
Thank you very much for helping! But with this code i can load data from
'selectedNode' to inputs elements. However i want to save data from input
elements to selected node.
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Re: ListChoice + Ajax
Posted by Sven Meier <sv...@meiers.net>.
You have to use an AjaxFormSubmitBehavior, then the textFields and the
selection of the listChoice will be pushed to the server in one go.
Sven
Mandrake wrote
> Thank you very much for helping! But with this code i can load data from
> 'selectedNode' to inputs elements. However i want to save data from input
> elements to selected node.
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Re: ListChoice + Ajax
Posted by Mandrake <ig...@gmail.com>.
Mandrakeonline
2 posts
Thank you very much for helping! But with this code i can load data from
'selectedNode' to inputs elements. However i want to save data from input
elements to selected node.
--
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Re: ListChoice + Ajax
Posted by Sven Meier <sv...@meiers.net>.
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!
>
>
>
> --
> View this message in context: http://apache-wicket.1842946.n4.nabble.com/ListChoice-Ajax-tp4654732.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
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