0

Scrollbar in Listbox moves to last selected item

asked 自拍亚洲偷丁香五月自拍偷拍视频亚洲?自拍?色综合图区港股通(沪)净流入2.12亿 港股通(深)净流入3.58亿

發布時間︰

  劉伯仁接過茶,輕輕點了點頭︰“是,卻也不是,畢竟對方來頭大,沒有確鑿的依據,劉某也不敢妄下定論。”   他轉身彎腰,撿甲板上的繩子,老六從腰間抽出一根鐵棍,猛砸下去。大老楊後腦被擊中,無聲地摔倒。自拍亚洲偷丁香五月   “別咬了,把管子拉倒,管子!”寧嘉大喊。自拍偷拍视频   打開窗戶,沒有玻璃的阻隔,溫暖的陽光直射在家具上,屋子里突然變得和煦暖和起來。我把藍色花瓶裝在了塑料袋里,用工具箱里的榔頭把它砸得粉碎,這樣就沒有拾荒人會把花瓶撿去而留下證據了。   但我顯然高估了女人的心理素質,一個伴娘嚇得直哆嗦,臉色煞白,完全不知該干什麼好;另一個則發出聲嘶力竭的尖叫,啊——亚洲?自拍?色综合图区   爬下竹梯果然見到有人在牆外的門柱邊站著。 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