Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/ContainerContext.java
*/
	private int getContentCount( Module module, String propName )
	{
		ElementPropertyDefn defn = container.getPropertyDefn( propName );
		if ( defn == null )
			return 0;
		if ( defn.isList( ) )
		{
			List value = container.getListProperty( module, propName );
			return value == null ? 0 : value.size( );
		}
		return container.getProperty( module, defn ) == null ? 0 : 1;
	}
	/**
	 * 
	 * @param module
	 * @param content
	 * @param posn
	 */
	public void add( Module module, DesignElement content, int posn )
	{
		if ( isSlot )
			container.add( content, containerSlotID, posn );
		else
			container.add( module, content, containerProp, posn );
	}
	/**
	 * 
	 * @param module
	 * @param content