Scrollbar in Listbox moves to last selected item

asked 超碰 人妻 中文字幕超碰97站中文字幕超碰97共享资源中文字幕哥伦比亚令优步在2016年数据泄露事件后改进数据安全


  桑弘羊自然不是那種听你說幾句話就對你推心置腹的人,听了雲瑯的話,他只是笑著點點頭表示嘉許,至于更進一步的交流,他還沒有表露的意思。   “去病在大河邊上準備建造一座軍城,照搬受降城的模式,準備以那座城為起點,慢慢積攢力量,然後繼續發起他的西征。捕奴團的人在義渠之地捕獲了兩萬多人,基本上把義渠一族的丁壯一掃而空。公孫弘下了嚴令,不許輸入義渠女子,听說正在操辦良賤不得通婚的法令,前所未有的嚴厲。”超碰 人妻 中文字幕   “要打架嗎?”雲瑯騎在馬上鄙視的瞅著桑弘羊。超碰97站中文字幕   大漢國歷來以出人才揚名匈奴地。   雲瑯回頭看看樹木茂盛的驪山道︰“老虎沒有發現,只能說你的護衛全部在睡覺。”超碰97共享资源中文字幕   “我們誰都沒有招惹,只想好好地過日子!”甦稚有些憤怒,順腳踢了老虎一腳,覺得這家伙很沒用,沒能在第一時間就把那母子三人嚇跑。 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:

<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"
        closable="true" border="normal" title="Customize columns" ctrlKeys="" height="400px" width="300px">
    <borderlayout width="100%" height="100%">
            <listbox id="table" checkmark="true" vflex="true" fixedLayout="true" multiple="true" width="100%">
                    <listheader align="left">Column title</listheader>

        <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"/>


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

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

    final ListModelList tableModel = new ListModelList(columns);
    for (int i = 0; i < columns.size(); i++) {
        final HeaderElement column = columns.get(i);
        if (column != null) {
            final Listitem listitem = table.getItemAtIndex(i);
            final String columnId = column.getId();
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);

And then I show the dialog window by this code:

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

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


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


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


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
link publish delete flag offensive edit

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

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

1 follower



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

Seen: 12 times

Last updated: Aug 01

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