0

Scrollbar in Listbox moves to last selected item

asked av在线日韩av无码在线直播免费阿v网站在线观看g奥克兰大学"港独"内容海报引学生冲突 中领馆表态

發布時間︰

  “是……是嗎,真是遺憾,以後可能很少能見到你了。”亞莉克希婭笑道。   黎舟心說,不好。av在线   “叮……經系統檢測,宿主天生五音不全,屬于嚴重缺陷,是否使用歌唱能力卡?”日韩av无码在线直播   他心里咯 一下,有什麼記憶正在涌上來,他奮力抬頭去看了一眼石碑,上面貼著一張照片,是一個二十多歲的年輕男人,面冠如玉,眉目深邃,帶著略有些清冷的疏離,這張臉他熟悉的不能再熟悉。免费阿v网站在线观看g   就和有天賦技能和沒有天賦技能的人一樣……當然,麥迪那種天賦連上帝都嫉妒的不算,人家麥迪就算沒有天賦技能,也能比賽打著打著能力值就上升了,人比人氣死人。 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