Gets the list of property columns to be added to a grid .

The Unit classifier.The Interactor classifier.The property columns (In/Out).<h2>Dependencies</h2><div class="INSET">None</div> <h2>Behavior</h2> Use this rule to add proeprty columns to the grid. example: ... columns.push({id: 'mandatory', 'type': 'expr', caption: 'Hi There!'}); ...(c) SAP AG 2003-2006. All rights reserved.