Scroll to view the selected list item function

Hi,

We have an application that has a list with many items.
In Portrait mode on the iPad, the user can see about 5 items. We maintain a "currently" selected item in the list.
Is there a function that I can call, to ensure the currently Selected item is always visible?

For example...
Let's say there are 50 items in the list.
Then, let's say the user has scrolled down and selected item #40.
Then, the list gets refreshed.
After the list is reloaded, I need to call a function that will automatically scroll item #40 into view.

Is there such a function ?

Thanks

You need to get the position of the selected item and then scroll to it.

Code:

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var store = list.getStore(),
    selected = list.getSelection()[0],
    idx = store.indexOf(selected),
    els = list.container.getViewItems(),
    el = els[idx],
    offset = el.dom.offsetTop;

list.getScrollable().getScroller().scrollTo(0, offset);

---

*typed from top of my head*

Uncaught TypeError: Cannot read property 'offsetTop' of undefined

Error is showing

may have to do Ext.get(el).dom.offsetTop then

Code:

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onItemTap: function(list, index, target, record, e) {       
            var store = list.getStore(),
            selected = list.getSelection()[0],
            idx = store.indexOf(selected),
            els = list.container.getViewItems(),
            el = els[idx],
            offset = Ext.get(el).dom.offsetTop;


          list.getScrollable().getScroller().scrollTo(0, offset);
}

---

Not working

Which part? Have you tried anything else?

when itemtap event fire the selected item should be set on top....

But without disturbing his default scrolling functionality.......

Even this code is not working with simple static data list...................
I have changed the scrollTo(0, offset) to scrollTo(0, 0) now cursor jump on top of the list...... but selected item is still in same position... i have to scroll to reach.....

Issue solved

Thanks

Quote:

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Originally Posted by scottd

Container does not have a getViewItems() method. What were you trying to get to, Mitchell?

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Sure it does: http://docs.sencha.com/touch/2-0/#!/...d-getViewItems