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Hello,
I'm implementing a feature to delete all the selected elements of a listbox, the listbox's model is binded to a composer List:
<listbox id="listBoxBooks" model="@{wnd$composer.booksModel}" checkmark="true" multiple="true"
fixedLayout="true" width="500px">
<listhead>
<listheader label="ID" sort="auto(id)" width="50px"/>
</listhead>
<listitem self="@{each=book}" value="@{book}">
<listcell label="@{book.id}"/>
</listitem>
</listbox>
<button id="btnDelete" label="Delete Selected"/>
Now on my composer I've the code to delete the selected books from the database:
ListModel booksModel
public void onClick$btnDelete() {
if (listBoxBooks.selectedCount > 0) {
// delete the books from the database
// get the new list of books
booksModel = new BindingListModelList(books, false)
binder.loadAll()
}
}
After I delete some books the listbox isn't automatically updated I have to refresh the hole page to get the updated list of books. I've already tried to invalidate the listbox component with no luck.
How could I update the listbox after I delete some elements?
Regards
Felipe, I'm not sure, but I think it could be from the fact that you're creating a new BindingListModelList. See what happens if you try this:
ListModel booksModel
public void onClick$btnDelete() {
if (listBoxBooks.selectedCount > 0) {
// delete the books from the database
// get the new list of books
booksModel.clear().
booksModel.addAll(books) ;
binder.loadAll() ;
}
}
and set a breakpoint in your getBooksModel() so you can examine what books are being returned to the data binder.
HTH,
Thank you cary. It solved the problem and a flush after the delete :)
Asked: 2009-12-10 07:19:14 +0800
Seen: 1,105 times
Last updated: Dec 10 '09