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
{
				if ( targetObj instanceof ColumnHandle )
				{
					return handleValidateContainColumnPaste(
							(ColumnHandle) targetObj,
							(ColumnBandData) transferData, false )
							? CONTAIN_PARENT
							: CONTAIN_NO;
				}
				return CONTAIN_NO;
			}
			else if ( transferData instanceof IDesignElement )
			{
				DesignElementHandle childHandle = ( (IDesignElement) transferData )
						.getHandle( SessionHandleAdapter.getInstance( )
								.getReportDesignHandle( ).getModule( ) );
				return handleValidateTargetCanContainByContainer( targetObj,
						childHandle, validateContainer );
			}
			else if ( transferData instanceof SlotHandle )
			{
				SlotHandle slot = (SlotHandle) transferData;
				Object[] childHandles = slot.getContents( ).toArray( );
				return handleValidateTargetCanContainByContainer( targetObj,
						childHandles, validateContainer );
			}
			else if ( transferData instanceof IStructure )
			{
				return handleValidateTargetCanContainStructure( targetObj,
						(IStructure) transferData ) ? CONTAIN_THIS : CONTAIN_NO;