Bug 122173 Can't drag and drop a data set column to report design layout editor
With 20051227's build, I can't bind a data set column to a table cell by drag & drop it from data explorer. This is a show stopper that we need to have it fixed.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
return true;
				}
				if ( bool && array[1] instanceof CellHandle )
				{
					return true;
				}
				return false;
			}
			for ( int i = 0; i < array.length; i++ )
			{
				if ( checkContainerExists( array[i], array ) )
					continue;
				if ( !handleValidateDragInOutline( array[i] ) )
					return false;
			}
			return true;
		}
		if ( selection instanceof ReportElementModel )
		{
			return handleValidateDragInOutline( ( (ReportElementModel) selection )
					.getSlotHandle( ) );
		}
		if ( selection instanceof SlotHandle )
		{
			SlotHandle slot = (SlotHandle) selection;
			DesignElementHandle handle = slot.getElementHandle( );
			return slot.getContents( ).size( ) > 0
					&& ( handle instanceof ListHandle || handle instanceof ListGroupHandle );
		}
		if ( selection instanceof ColumnHandle )