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
childHandle,
					validateContainer );
		}
		if ( targetObj instanceof SlotHandle )
		{
			SlotHandle targetHandle = (SlotHandle) targetObj;
			
			
			
			
			
			if ( !childHandle.getElement( ).getDefn( ).canExtend( ) )
			{
				return CONTAIN_NO;
			}
			return targetHandle.getElementHandle( )
					.canContain( targetHandle.getSlotID( ), childHandle ) ? CONTAIN_THIS
					: CONTAIN_NO;
		}
		return CONTAIN_NO;
	}
	protected static int handleValidateTargetCanContainByContainer(
			Object targetObj, Object[] childHandles, boolean validateContainer )
	{
		if ( childHandles.length == 0 )
		{
			return CONTAIN_NO;
		}
		for ( int i = 0; i < childHandles.length; i++ )
		{