viewPanel.getSelectedIds returns 0 - xpages

Question

I have a button which should change the value of a field on the selected documents from a viewpanel. But whatever I do, I also switched the columns where the checkbox was, I always get 0 ids.
Here is my viewPanel:
<xp:viewPanel rows="30" id="viewPanel1" pageName="/Account.xsp" var="rowData">
<xp:this.facets>
<xp:pager partialRefresh="true"
layout="FirstImage PreviousImage SeparatorPage Group NextImage LastImage"
xp:key="headerPager" id="pager1" alwaysCalculateLast="true">
</xp:pager>
</xp:this.facets>
<xp:this.data>
<xp:dominoView var="view1" viewName="Konten\Fehler">
<xp:this.search><![CDATA[#{javascript:return viewScope.get( "searchString" );}]]></xp:this.search>
</xp:dominoView>
</xp:this.data>
<xp:viewColumn id="viewColumn10" columnName="$errCodes">
<xp:this.facets>
<xp:viewColumnHeader xp:key="header" id="viewColumnHeader10" value="Fehler">
</xp:viewColumnHeader>
</xp:this.facets>
</xp:viewColumn>
<xp:viewColumn id="viewColumn9" styleClass="total">
<xp:this.facets>
<xp:viewColumnHeader xp:key="header" id="viewColumnHeader9">
</xp:viewColumnHeader>
</xp:this.facets>
<xp:this.value><![CDATA[#{javascript:if( rowData.isCategory() )
{
return rowData.getColumnValue( "$11" )
}}]]></xp:this.value>
<xp:this.converter>
<xp:convertNumber type="number" integerOnly="true">
</xp:convertNumber>
</xp:this.converter>
</xp:viewColumn>
<xp:viewColumn id="viewColumn8" columnName="accountnumber" displayAs="link">
<xp:this.facets>
<xp:viewColumnHeader xp:key="header" id="viewColumnHeader8" value="Konto" sortable="true">
</xp:viewColumnHeader>
</xp:this.facets>
</xp:viewColumn>
<xp:viewColumn columnName="iban" id="viewColumn1" showCheckbox="true">
<xp:viewColumnHeader value="IBAN" id="viewColumnHeader1" sortable="true">
</xp:viewColumnHeader>
</xp:viewColumn>
<xp:viewColumn columnName="accounttype" id="viewColumn2">
<xp:viewColumnHeader value="Typ" id="viewColumnHeader2">
</xp:viewColumnHeader>
</xp:viewColumn>
<xp:viewColumn id="viewColumn7" columnName="$info">
<xp:this.facets>
<xp:viewColumnHeader xp:key="header" id="viewColumnHeader7" value="Fehlermeldung" sortable="true">
</xp:viewColumnHeader>
</xp:this.facets>
</xp:viewColumn>
</xp:viewPanel>
and the button
<xp:button value="Ausblenden" id="button1" styleClass="btn-info">
<xp:eventHandler event="onclick" submit="true" refreshMode="norefresh">
<xp:this.action>
<![CDATA[#{javascript:
var viewPanel = getComponent( "viewPanel1" );
var docIDArray = viewPanel.getSelectedIds();
for( i=0; i < docIDArray.length; i++ )
{
var docId = docIDArray[i];
var doc:NotesDocument = database.getDocumentByID( docId );
doc.replaceItemValue( "$shErr", 0 );
doc.save();
}
}]]>
</xp:this.action>
</xp:eventHandler>
</xp:button>
but somehow getSelectedIds returns no id at all.
Any ideas? Thanks for your time!

Answer 1

If you try the below, do you get anything from unidArray?
var unidArray = new Array();
for(i=0; i < docIDArray.length; i++) {
var unid=database.getDocumentByID(docIDArray[i]).getUniversalID();
unidArray.push(unid);
}