0

Scrollbar in Listbox moves to last selected item

asked 日本免费av无码片网站kk4444在线观看经典AV三级在线5G手机产业链酝酿新投资机会

發布時間︰

  雲氏莊園距離富貴城不過十五里之遙,長長的車隊駛進富貴城,瞅著高大的城牆,以及戒備森嚴的城門,雲瑯不由自主的有些驕傲。   至少,雲瑯很容易從這件事情中發現,即便是關中,弘農一帶的儒家大儒,跟董仲舒也並非是一條心。日本免费av无码片网站   雲瑯嘆口氣道︰“富貴城的城牆很高,江充帶著妹子的尸體,沒法子翻越城牆,只能走城門。”kk4444在线观看   “咦,角斗場的大秦人不是死了嗎?怎麼又開了?”   他還記得,自己在很久以前為了充分利用蜀中棧道,不惜與蜀中黃氏硬拼,如此才將蜀中商賈與關中商賈連成一片……经典AV三级在线   雲瑯不願意跟他打招呼,因為該死的董仲舒不但沒死,反而獲得精神奕奕,正靠在一張錦榻上觀看兩個異族美人兒跳舞,一個長著一臉紅胡子的胡人正把一只胡羯鼓敲的山響。 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