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
* @return The number of slots. Returns 0 if this element is not a
	 *         container.
	 */
	public int getSlotCount( )
	{
		if ( slots == null )
			return 0;
		return slots.size( );
	}
	/**
	 * Returns whether this element has the requested slot given the numeric
	 * identifier of the slot.
	 * 
	 * @param slotID
	 *            The slotID to check.
	 * @return True if the slotID exists, false otherwise.
	 */
	public boolean hasSlot( int slotID )
	{
		if ( slots == null )
			return false;
		return slotID >= 0 && slotID < slots.size( );
	}
	/**
	 * Returns the meta-data definition for a slot given its numeric slot
	 * identifier.
	 * 
	 * @param slotID
	 *            The slot identifier.
	 * @return The slot information. Returns null if this element is not a