Bug 183888 BIRT designer - Cube in data explorer
Current behavior - The data explorer view allows uer to change the order of a group level in a hierrachy. Expected behavior - user should not be allowed to change the order of the group level in data explorer view. - Instead user can user cube builder dialog to change the order.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
{
					return CONTAIN_NO;
				}
			}
			else if ( !targetHandle.getContainer( )
					.getDefn( )
					.getSlot( targetHandle.getContainerSlotHandle( )
							.getSlotID( ) )
					.isMultipleCardinality( ) )
			{
				
				return CONTAIN_NO;
			}
			if ( targetHandle.getClass( ).equals( childHandle.getClass( ) ) )
			{
				
				return CONTAIN_PARENT;
			}
			if ( targetHandle.getContainerSlotHandle( ) != null )
			{
				return targetHandle.getContainer( )
						.canContain( targetHandle.getContainerSlotHandle( )
								.getSlotID( ),
								childHandle ) ? CONTAIN_PARENT : CONTAIN_NO;
			}
			else if ( targetHandle.getContainerPropertyHandle( ) != null )
			{
				return targetHandle.getContainer( )
						.canContain( targetHandle.getContainerPropertyHandle( )
								.getPropertyDefn( )