Access particular elememt in a list

answered 2009-11-15 04:34:52 +0800

kyc
54 ● 1

I want to get Collection ListA element in zul page not listbox element in java

answered 2009-11-15 21:11:10 +0800

kyc
54 ● 1

Thank you for your patience to listen to me. Here is some of my program

Domain class relationship:

public class Channel implements java.io.Serializable {
private SortedSet<Osd> osds = new TreeSet<Osd>(new OsdComparator());

//getter and setter here
}

public class Osd implements java.io.Serializable {
private String osdName;
//getter and setter here
}


In Composer class:

private Channel selectedChannel;

public void setSelectedChannel(Channel selectedChannel) {
this.selectedChannel = selectedChannel;
}

public Channel getSelectedChannel() {
return selectedChannel;
}



In the zul page, there is a listbox to show the search result

<listbox rows="10"
selectedItem="@{channelComposer.selectedChannel}"
model="@{channelComposer.searchChannelList, load-after='search.onClick'}">
<listhead>

<listheader label="Osd Name" sort="auto" />

</listhead>
<listitem self="@{each=searchChannel}">
<listcell label="@{searchChannel.osdStr}" />
</listitem>
</listbox>

After user select one of the channel, I want to show the channel's osd name in the textbox. But the channel to osd relationship is one to many
But the number of group of textbox is fixed to two set or a number I defined in another place.

<hbox>
<textbox id="cfOsdName0" value="" width="200px" />
<textbox id="cfOsdNameX0" value="" width="50px" />
<textbox id="cfOsdNameY0" value="" width="50px" />
</hbox>

<hbox>
<textbox id="cfOsdName1" value="" width="200px" />
<textbox id="cfOsdNameX1" value="" width="50px" />
<textbox id="cfOsdNameY1" value="" width="50px" />
</hbox>

Here is my question:
1 ) It seems can't use cfOsdName[0] as the textbox id for binding to the composer Textbox [] cfOsdName

2) I try to use @{channelComposer.selectedChannel.osd[0].osdName} to retrieve the osd set element but seems can't.

3) If I want to loop 2 times of the hbox group, how to represent the for loop in the zul page Since the number of hbox with textbox does not tie to the number of osd elements


Thanks a lot.