private void setupSessionDataGrid() { sessionsDataGrid = new DataGrid<SessionDataDto>(); sessionsDataGrid.setPageSize(15); sessionsDataGrid.setEmptyTableWidget(new Label("No Sessions")); // Add a selection model so we can select cells. final SelectionModel<SessionDataDto> selectionModel = new MultiSelectionModel<SessionDataDto>( new ProvidesKey<SessionDataDto>() { @Override public Object getKey(SessionDataDto item) { return item.getSessionId(); } }); sessionsDataGrid.setSelectionModel( selectionModel, DefaultSelectionEventManager.<SessionDataDto>createCheckboxManager()); // Checkbox column. This table will uses a checkbox column for selection. // Alternatively, you can call dataGrid.setSelectionEnabled(true) to enable mouse selection. Column<SessionDataDto, Boolean> checkColumn = new Column<SessionDataDto, Boolean>(new CheckboxCell(true, false)) { @Override public Boolean getValue(SessionDataDto object) { // Get the value from the selection model. return selectionModel.isSelected(object); } }; sessionsDataGrid.addColumn(checkColumn, SafeHtmlUtils.fromSafeConstant("<br/>")); sessionsDataGrid.setColumnWidth(checkColumn, 40, Style.Unit.PX); sessionsDataGrid.addColumn( new TextColumn<SessionDataDto>() { @Override public String getValue(SessionDataDto object) { return object.getName(); } }, "Name"); sessionsDataGrid.addColumn( new TextColumn<SessionDataDto>() { @Override public String getValue(SessionDataDto object) { return object.getStartDate(); } }, "Start Date"); sessionsDataGrid.addColumn( new TextColumn<SessionDataDto>() { @Override public String getValue(SessionDataDto object) { return object.getEndDate(); } }, "End Date"); sessionDataProvider.addDataDisplay(sessionsDataGrid); }