});
Button multiCellSelectionButton = new Button("Set Multi-Cell Selection");
multiCellSelectionButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent clickEvent) {
MultiCellSelectionModel selectionModel = new MultiCellSelectionModel();
table.setSelectionModel(selectionModel);
selectionModel.addListener(new MultiCellSelection.Listener() {
public void selectionCleared() {
messageLabel.setText("");
}
public void cellSelected(int row, int column, MultiCellSelection model) {