I would like to display a list of  images (ids) located in a folder and which property State equals to 'private'
Here is the code I wrote :
      <dtml-in expr="objectIds(['Image'])">
         <dtml-if "_['sequence-item'].getProperty('State')=='private'">
            <dtml-var sequence-item><br>
         </dtml-if>
      </dtml-in>

Zope generate the next error :
Error Type: AttributeError
Error Value: getProperty

In order to answer the reply of Maik Jablonski (it was just a forbid, the problem is not due to the comparaison operator ==
I don't know how to proceed, perhaps can I find a soltuion with a Python script

If somebody can help me ?
Thanks

GARCIA William