Collections.sort(securities, new Security.ByName());
new ListEditingSupport(PortfolioTransaction.class, "security", securities).addListener(this).attachTo(column); //$NON-NLS-1$
support.addColumn(column);
column = new Column(Messages.ColumnShares, SWT.RIGHT, 80);
column.setLabelProvider(new SharesLabelProvider()
{
private TransactionLabelProvider colors = new TransactionLabelProvider();
@Override
public Long getValue(Object element)