Bug 172273 Grid insert to masterpage dosen't display propertily [05]
Build Number: 2.2.0.v20070131-1050 Description: As the screenshot, insert a grid (3*3) in the master page.It can't be display propertily. Step to reproduce: 1. new a report and switch to masterpage 2. insert a grid (3*3) Actual result: Please refer to the screenshot, it's abnormal.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ElementDefn.java
/**
	 * Builds the meta-data for each slotID in this container element.
	 * 
	 * @throws MetaDataException
	 *             if build of any slot failed.
	 */
	protected void buildSlots( ) throws MetaDataException
	{
		if ( slots != null && slots.size( ) == 0 )
			slots = null;
		if ( slots == null )
			return;
		for ( int i = 0; i < slots.size( ); i++ )
		{
			SlotDefn slot = (SlotDefn) slots.get( i );
			slot.setSlotID( i );
			slot.build( );
		}
	}
	/**
	 * Returns a list of the localized property group names defined by this
	 * element and its parents.
	 * <p>
	 * The UI uses property groups to organize properties within the generic
	 * property sheet.
	 * 
	 * @return The list of group names. If there is no groups defined on the
	 *         element, the list will has no content.
	 */
	public List getGroupNames( )