On Mon, Feb 2, 2009 at 17:11, Jean Couteau <couteau(a)codelutin.com> wrote: The UserList property is not that well maintained, and actually it does not use a list internally. The actual data type inside is the LargeStringProperty, which is a string (the same as TextArea). You should instead use a DBListProperty, which is maintained and should work as expected. The following code (and corrections) should work with a DBList property only (also, only if Multiple select and Relational storage are checked for the property, since otherwise you'd also get a LargeStringProperty instead of a list). $taskObj.get doesn't return the internal value of the property, but it actually displays the value as HTML. The right approach is: #set($list = $taskObj.getProperty('assignedPeople').value) Now $list is a real java ArrayList, so the next code will work. ^ This is not needed, the list is already the property value. It's enough to save the document. >  $taskDoc.save() > #end > > but $list.add does not exist so I tried differently : > > #if($joinTask!="") >  #set($taskDoc = $xwiki.getDocument("Project.${joinTask}")) >  #set($taskObj = $taskDoc.getObject("XWiki.TaskClass")) >  #set($list = $util.getArrayList()) >  $taskDoc.save() > #end > > but I have a casting exception. > > I had a look on the velocity website, on this list archives,... with no > success > > My question is : Can I add users like that or the only way is through > the edit panel and if yes, what is my mistake ? -- http://purl.org/net/sergiu