0

Scrollbar in Listbox moves to last selected item

asked 在线原版超碰免费公开视频91超碰免费视频公开金成男访华向中方通报朝美首脑会谈结果?中方回应

發布時間︰

  好在上林苑的道路上即便是晚上也有商賈不絕于途,否則,就他這樣的少年人走夜路,是野獸的好點心,也是強盜的好目標。   大長秋喝口茶道︰“既然活的無聊,不如就趁這個好機會把紅袖娶了,房間里有了新人,日子或許就能過的松快些。”在线   其余幾人也迫不及待的喝完了酒,一個個把大拇指快要翹到天上去了。原版超碰免费公开视频   “我更喜歡陛下對我直來直去,他下令,我執行就好了,我霍去病此生沒有位極人臣的打算,只想把匈奴殺的干干淨淨,然後就在驪山里狩獵,或者在家里種田,朝堂上的事情,我沒有任何興趣。”   雲瑯拗不過張湯,兩人就淌著草葉上的露水去了田野深處。91超碰免费视频公开   四更天了,雲瑯終于寫完了最後一個字,小心的吹干了紙上的墨汁。 2019-07-29 16:02:29 +0800

anvibb gravatar image anvibb
3 1

Hi, guys! I have some trouble with scrollbar in the Listbox component - when I set the model to it and selecting several listitems, the scrollbar moves down to the last selected item, but I need to keep it on top. We've used simple zul as a view:

<zk>
<window xmlns="http: //www.zkoss.org/2005/zul" xmlns:xsi="http: //www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http: //www.zkoss.org/2005/zul http: //www.zkoss.org/2005/zul/zul.xsd"
        use="com.otr.sufd.zkossforms.table.SetDocColumnsView"
        closable="true" border="normal" title="Customize columns" ctrlKeys="" height="400px" width="300px">
    <borderlayout width="100%" height="100%">
        <center>
            <listbox id="table" checkmark="true" vflex="true" fixedLayout="true" multiple="true" width="100%">
                <listhead>
                    <listheader align="left">Column title</listheader>
                </listhead>
            </listbox>
        </center>

        <south size="36" autoscroll="true">
            <toolbar align="end">
                <button label="OK" id="okButton" height="24px" width="75px" mold="os"/>
                <button label="Reset" id="resetButton" height="24px" width="75px"/>
                <button label="Cancel" id="cancelButton" height="24px" width="75px" mold="os"/>
            </toolbar>
        </south>
    </borderlayout>
</window>

</zk>

In SetDocColumnsView I filled Listbox by model and make some AfterCompose actions:

public void configureView(List<? extends HeaderElement> columns, Set<String> hiddenIds) {
    setSizable(true);

    final ListModelList tableModel = new ListModelList(columns);
    tableModel.setMultiple(true);
    table.setModel(tableModel);
    table.renderAll();
    for (int i = 0; i < columns.size(); i++) {
        final HeaderElement column = columns.get(i);
        if (column != null) {
            final Listitem listitem = table.getItemAtIndex(i);
            listitem.setLabel(column.getLabel());
            final String columnId = column.getId();
            listitem.setValue(columnId);
            listitem.setSelected(!hiddenIds.contains(columnId));
        }
    }
}
@Override
public void afterCompose() {
    table = (Listbox) getFellow("table");
    final Button okButton = (Button) getFellow("okButton");
    //adds some listeners to buttons
    addForward(Events.ON_OK, okButton, Events.ON_CLICK);
    addForward(Events.ON_CANCEL, cancelButton, Events.ON_CLICK);
    okButton.setFocus(true);
}

And then I show the dialog window by this code:

final SetDocColumnsView dialog = UIUtils.loadComponent(SetDocColumnsView.getUrl());
dialog.configureView(columnList, hiddenIds);
dialog.setPage(getPage());
dialog.doHighlighted();

I've tried to use some advice given in other threads, such as:

Clients.scrollIntoView(table.getItemAtIndex(0))

or call JS function inside my configureView method:

Clients.evalJavaScript("zk.Widget.$('" + dialog.table.getUuid() + "')._scrollToIndex(0);")

or keep all listitems what I need to select in a different Set and post to setSelectedItems method of Listbox, but everything is without success. Also, I've tried to debug a JS function _doScroll in Listbox.js but I don't figure out from where it has been called :(

I will be very appreciated if someone can help me with this problem.

Best regards, Roman

delete flag offensive retag edit

Comments

if your example is simple, please paste it into http://zkfiddle.org/ so that anyone can have a look directly, this increases your chances of getting a response quickly

cor3000 ( 2019-07-29 18:30:05 +0800 )edit

Yeah, I made simple zkfiddle example - http://zkfiddle.org/sample/1a44bo/1-scrollbar-in-listbox-moves-to-last-selected-item which reproduces the problem

anvibb ( 2019-07-30 21:16:58 +0800 )edit

4 Answers

0

answered 2019-08-01 09:12:39 +0800

hawk gravatar image hawk
2415 1 5
http://hawkphoenix.blogsp... ZK Team

Thanks for the zkfiddle example. Remove renderAll() can solve scrolling position issue. Listbox by default will render necessary Listitem for visible range, you don't need to call renderAll() which will enforce rendering all Listitems which is unnecessary for most cases. Please refer to http://zkfiddle.org/sample/1a44bo/2-scrollbar-in-listbox-moves-to-last-selected-item#source-2

link publish delete flag offensive edit
0
link publish delete flag offensive edit
0

answered 2019-07-31 21:05:33 +0800

anvibb gravatar image anvibb
3 1

updated 2019-08-01 09:01:48 +0800

hawk gravatar image hawk
2415 1 5
http://hawkphoenix.blogsp... ZK Team

Thank you for the response, hawk!

I tried to change the selection of items as you advised, but it doesn't solve my problem - when I select several items via ListModeList.setSelection, the scrollbar moves down to the last item. I made an example of that behavior in zkfiddle - http://zkfiddle.org/sample/1a44bo/1-scrollbar-in-listbox-moves-to-last-selected-item

link publish delete flag offensive edit
0

answered 2019-08-01 17:45:43 +0800

anvibb gravatar image anvibb
3 1

Removing renderAll() is helped!

Thank you so much!

link publish delete flag offensive edit
Your answer
Please start posting your answer anonymously - your answer will be saved within the current session and published after you log in or create a new account. Please try to give a substantial answer, for discussions, please use comments and please do remember to vote (after you log in)!

[hide preview]

Question tools

Follow
1 follower

RSS

Stats

Asked: 2019-07-29 16:02:29 +0800

Seen: 12 times

Last updated: Aug 01

Support Options
  • Email Support
  • Training
  • Consulting
  • Outsourcing
Learn More