if (items.size() > 0) {
for (IModel model : items) {
Entry entry = (Entry) model.getObject();
dataSource.removeEntry(entry);
}
grid.resetSelectedItems();
dataSource.storeToPageParameters();
grid.markAllItemsDirty();
grid.update();
} else {
target.appendJavaScript("alert('" + getString("noItemsSelected") + "');");