DataScroller reset the current page

[maiky]

Hello,

I try to explian my problem, sorry if you don't understand I'm bad in English.

I've got a table with a datascroller to multipages.
They are 10 lines per pages.

In my table I've got a button to delet one line (on delete I rerender the table and the datascroller)

If I've got 11 records and I go to the second page with the datascroller, I see 1 line.

Then if I delete this line, i've got 10 records so 1 page.

The datascroller show me 1 page, but it was on the page 2 so the table show no line.

What can i do to reset the datascroller and redirect it to the first page ?

Thks and sorry for my bad English.

[amitev]

Currently the datascroller. You have to reset it yourself. You can do this with binding to the datatable and call dataTable.setFirst(0)

[mail.micke]

A bit of a redundant post, but you also bind the datascroller and do:
dataScroller.getDataTable().setFirst(0);

:)

[razwed4ik]

Hi Guys, I have the same problem.
What do you mean with binding and call this setFirst() method. Can you give an example how to do this.

If I have code like this:

<rich:datascroller align="left" for="table" maxPages="10" />

so how i can call this methode setFirst?


Merry Christmas, bst rgrds

[mail.micke]

Hi,
what we mean is that you use a binding to an instance of the actual JSF ui component on the backing bean.

Here you can choose to either have a binding to the data table, or like I suggested the data scroller.

You do this by creating a property with the ui component on the backing bean like you would any other property, and then use the "binding" attribute in your xhtml/jsp markup. Really quite simple.

Then what I do is call the setFirst method in an action which creates the data the datatable is displaying.

Afraid I can't produce any code snippets now, late and on holiday. But if you need some I can digg some up for you later on.

Cheers

[razwed4ik]

Thanks Micke,

I think i understood, what u mean. Let you know, if I made it.

Happy holidays

[mars1412]

I think the described behaviour should be default for datascroller.
I can't think of any situation when you don't want the datascroller to got to last page, when you just deleted the last item of the (previous) last page).

should we raise a feature request jira for this?

[mars1412]

I just tried the workaround proposed in the other postings here.

Well, it works, but it feels very bad: This means that I must use UIDataScroller in each of my backing-beans and thus making my ejb-project dependant on the gui (richfaces libs).

does anyone know a better approach for this?

[ljunior]

I have a similar problem to solve. In my case I want to return to the page that the user was when he clicked the delete button. I added a scrollerListener to my dataScroller and I bind it to my backing bean. Should I use the setFirst method in this case too? Have anyone a example?

[mars1412]

Does it work with the scrollerListener?
If not, getPageCount() and setPage() might help you.

[ljunior]

With the scrollerListener I might retrieve the last page selected by the user. What I couldn't yet is to return to that page. I tried to use the setPage method of DataScroller, however it doesn't work. Any other idea?

My code (somethings in Portuguese...):

public void scrollerListener(DataScrollerEvent evt){
 System.out.println("New page: " + evt.getNewScrolVal() + " - Old page: " + evt.getOldScrolVal());
 //((HtmlDatascroller)evt.getSource()).getDataTable().set
 paginaAnterior = evt.getNewScrolVal();
 }

 protected void voltarPaginaAnterior(){
 System.out.println("Voltando para a página: " + paginaAnterior);
 formDataScroller.setPage(paginaAnterior);
 }

[mars1412]

that works for me (to reset the page to the last one):

public void checkPages(UIDatascroller ds) {
 int pageCount = ds.getPageCount();
 int pageIndex = ds.getPageIndex();
 if (pageIndex > pageCount) {
 ds.setPage(UIDatascroller.LAST_FACET_NAME);
 }
 }

[nbelaevski]

That's been tracked as http://jira.jboss.com/jira/browse/RF-1133

The problem should be fixed in 3.2.0, please try it

[mail.micke]

I'm using 3.2.1 and had to resort to the page="#{some.el}" solution. Did this problem resurface?

- micke