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Posted to users@wicket.apache.org by HHB <hu...@yahoo.ca> on 2009/04/30 11:29:46 UTC
How to remove a row from DataTable?
Hey,
I employed AjaxFallbackDefaultDataTable to list contacts.
The last column contains a delete link that I created it this way:
********************
final List<IColumn> columns = new ArrayList<IColumn>();
columns.add(new AbstractColumn(new Model("Delete")) {
public void populateItem(Item cellItem,
String componentId, IModel rowModel) {
Contact contact = ((Contact)
rowModel.getObject());
cellItem.add(new
DeleteContactPanel(componentId, contact));
}
});
********************
public DeleteContactPanel(String id,
final Contact contact) {
super(id);
setOutputMarkupId(true);
final Form form = new Form("form");
form.add(new AjaxSubmitLink("delete") {
@Override
protected void onSubmit(AjaxRequestTarget target,
Form form) {
service.deleteContact(contact);
System.out.println("OK Deleted");
}
});
add(form);
}
********************
When deleting the contact from the database, I want to
remove its row also from AjaxFallbackDefaultDataTable
and display a message.
But I'm not sure how to accomplish this?
I mean how to communicate between DeleteActionPanel
and the DataTable?
Would you please help me?
Thanks for help and time.
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Re: How to remove a row from DataTable?
Posted by "Mathias P.W Nilsson" <ma...@snyltarna.se>.
Actually is the wicket coders that uses this style in amost every component.
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Re: How to remove a row from DataTable?
Posted by HHB <hu...@yahoo.ca>.
Thanks, your suggestion works like a charm.
I like the technique of using abstract method, you have a Swing development
background, right?
Thanks again.
Mathias P.W Nilsson wrote:
>
> I don't know if you can remove one row and just update the row as you can
> with TreeTable but maybe some here could guide you.
>
> If it is good enough to update the whole table then maybe somthing like
> this. this is typed from my head so there may be errors.
>
> public abstract DeleteContactPanel extends Panel{
> public DeleteContactPanel(String id, final Contact contact) {
> super(id);
> setOutputMarkupId(true);
> final Form form = new Form("form");
> form.add(new AjaxSubmitLink("delete") {
> @Override
> protected void onSubmit(AjaxRequestTarget target, Form form) {
> service.deleteContact(contact);
> onDelete( target );
> System.out.println("OK Deleted");
> }
> });
> add(form);
> }
> public abstract void onDelete( AjaxrequestTarget target );
> }
>
>
> final List<IColumn> columns = new ArrayList<IColumn>();
> columns.add(new AbstractColumn(new Model("Delete")) {
> public void populateItem(Item cellItem, String componentId, IModel
> rowModel) {
> Contact contact = ((Contact) rowModel.getObject());
> cellItem.add(new DeleteContactPanel(componentId, contact){
> public void onDelete( AjaxRequestTarget target ){
> // Add table here and show flashmessage
> info( "Row deleted" );
> target.addComponent( feedback );
> target.addComponent( datatable );
> }
> });
> }
> });
>
>
>
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Re: How to remove a row from DataTable?
Posted by "Mathias P.W Nilsson" <ma...@snyltarna.se>.
I don't know if you can remove one row and just update the row as you can
with TreeTable but maybe some here could guide you.
If it is good enough to update the whole table then maybe somthing like
this. this is typed from my head so there may be errors.
public abstract DeleteContactPanel extends Panel{
public DeleteContactPanel(String id, final Contact contact) {
super(id);
setOutputMarkupId(true);
final Form form = new Form("form");
form.add(new AjaxSubmitLink("delete") {
@Override
protected void onSubmit(AjaxRequestTarget target, Form form) {
service.deleteContact(contact);
onDelete( target );
System.out.println("OK Deleted");
}
});
add(form);
}
public abstract void onDelete( AjaxrequestTarget target );
}
final List<IColumn> columns = new ArrayList<IColumn>();
columns.add(new AbstractColumn(new Model("Delete")) {
public void populateItem(Item cellItem, String componentId, IModel
rowModel) {
Contact contact = ((Contact) rowModel.getObject());
cellItem.add(new DeleteContactPanel(componentId, contact){
public void onDelete( AjaxRequestTarget target ){
// Add table here and show flashmessage
info( "Row deleted" );
target.addComponent( feedback );
target.addComponent( datatable );
}
});
}
});
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