Bug 212984 Disable Dimension or Level drag into outline
Description: The levels are not auto-outspread when drag the dimension from Data explorer to Outline Build number: 2.3.0.v20071214 Steps to reproduce: 1, New a cube with multiple levels in one dimension 2, New a crosstab 3, Drag the dimension from cube to crosstab's column area in Outline Expected result: The levels are auto-outspread. Actual result: The levels are not auto-outspread. Error log:
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dnd/DimensionHandleDropAdapter.java
return DNDService.LOGIC_TRUE;
			}
			else
			{
				return DNDService.LOGIC_UNKNOW;
			}
		}
		return DNDService.LOGIC_UNKNOW;
	}
	private boolean isDimensionHandle( Object transfer )
	{
		if ( transfer instanceof Object[] )
		{
			Object[] items = (Object[]) transfer;
			DesignElementHandle container = null;
			for ( int i = 0; i < items.length; i++ )
			{
				if ( !( items[i] instanceof DimensionHandle ) )
					return false;
				if ( container == null )
					container = ( (DimensionHandle) items[i] ).getContainer( );
				else if ( container != ( (DimensionHandle) items[i] ).getContainer( ) )
					return false;
			}
			return true;
		}
		return transfer instanceof DimensionHandle;
	}
	public boolean performDrop( Object transfer, Object target, int operation,
			DNDLocation location )