this.base.setWidget(row, (col * 2) + 1, widget);
this.base.getCellFormatter()
.setStyleName(row, (col * 2) + 1, "field");
if(field.getHelpText() != null) {
label.addClickListener(
new ClickListener() {
public void onClick(Widget widget) {
final PopupPanel p = new PopupPanel(true);
p.setStyleName("gwittir-GridForm-Help");
p.setWidget(new HTML(field.getHelpText()));