Notes/Domino XPages Development Forum - repeated dataTable: hide dataTable completely if no content

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~Lisa Dwonigen

Sep 10, 2011, 9:42 AM

14 Posts

Resolved

repeated dataTable: hide dataTable completely if no content

Category: Other
Platform: Windows
Release: 8.5.2
Role: Developer
Tags: xpages,Repeat Control,Data Table
Replies: 2

Hi,
trying to display search results from several other databases leads to a minor problem:

The caption of all dataTables are displayed, even if there are no matching documents.
But I want the dataTable to be hidden completely in this case.
I have tried the "rendered" property, but there the computed value is unavailable.

To avoid double searching, how could I compute the search result collection in the beginning of the reapeat to be usable as "this:data" and for calculating "rendered"?

Thanks in advance,

Bernd

The source of my custom control:

<xp:view xmlns:xp="http://www.ibm.com/xsp/core" xmlns:xc="http://www.ibm.com/xsp/custom"
   xmlns:xe="http://www.ibm.com/xsp/coreex">
   <xp:this.dataContexts>
       <xp:dataContext var="newsSearchStr">
           <xp:this.value><![CDATA[#{javascript:"[Modifed]>="+sessionScope.conf.app.newsDateQry}]]></xp:this.value>
       </xp:dataContext>
   </xp:this.dataContexts>
   <xp:panel id="centerArea">
       <xp:div styleClass="viewHeader">
           <xp:text escape="true" id="computedField2">
               <xp:this.value><![CDATA[#{javascript:var appObj = sessionScope.conf.app;
"Modified entries since " + appObj.newsDays + " days"}]]></xp:this.value>
           </xp:text>
       </xp:div>

       
       <xp:repeat id="repeatDbs" rows="100"
           value="#{sessionScope.conf.dbsNews}" var="newsDbObj" indexVar="idxNewsDb">

           
           <xp:dataTable id="dataTable1" rows="3000" indexVar="dtIdx"
               var="dtVar" caption="#{javascript:newsDbObj.dbShort}">
               <xp:this.value><![CDATA[#{javascript:// ...db.ftSearch TODO: should be view.FTSearch()
var db:NotesDatabase = session.getDatabase("", newsDbObj.dbPath);
if (db && db.isOpen()) {
   var coll = db.FTSearch(newsSearchStr);
}else {
   var coll = null;
}
coll}]]></xp:this.value>
               <xp:column id="column1" style="width:50px;">
                   <xp:text escape="true" id="computedField4"
                       value="#{dtIdx}">
                   </xp:text>
               </xp:column>
               <xp:column id="column2">
                   <xp:link escape="true" id="link1">
                       <xp:this.text><![CDATA[#{javascript:dtVar.getItemValueString("Subject")}]]></xp:this.text>
                       <xp:this.value><![CDATA[#{javascript:"/xpMainTopic.xsp"}]]></xp:this.value>
                       <xp:this.parameters>
                           <xp:parameter name="action" value="openDocument">
                           </xp:parameter>
                           <xp:parameter value="#{javascript:newsDbObj.dbPath}"
                               name="databaseName">
                           </xp:parameter>
                           <xp:parameter name="documentId">
                               <xp:this.value><![CDATA[#{javascript:dtVar.getUniversalID()
}]]></xp:this.value>
                           </xp:parameter>
                       </xp:this.parameters>
                   </xp:link>
               </xp:column>
           </xp:dataTable>
       </xp:repeat>
   </xp:panel>
</xp:view>

~Lily Kihipisonetsi

Sep 14, 2011, 12:18 PM

261 Posts

Re: repeated dataTable: hide dataTable completely if no content

If the rendered property doesn't work for you (although it should), you could always wrap the datatable in an <xp:div> and set the rendered property on that component.

To check if there are results to display in the datatable you can use

getComponent("yourDataTableId").getRowCount() > 0

Mark

~Lisa Dwonigen

Sep 15, 2011, 5:59 AM

14 Posts

Re: repeated dataTable: hide dataTable completely if no content

Thank you, Mark

After adding

<xp:this.rendered>
<![CDATA[#{javascript:getComponent("dataTable1").getRowCount() > 0 }]]>
</xp:this.rendered>

to the dataTable, it works perfectly :-)

I still have to learn a lot about components...

Regards,

Bernd