You have not shared a complete code.
Still I am trying to provide you a sample code. Please have a look.
public class SmartGWTProject implements EntryPoint {
public void onModuleLoad() {
class User {
private int id;
private String firstName;
private Date registrationDate;
public User(int id, String firstName, Date registrationDate) {
this.id = id;
this.firstName = firstName;
this.registrationDate = registrationDate;
}
public int getId() {
return id;
}
public String getFirstName() {
return firstName;
}
public Date getRegistrationDate() {
return registrationDate;
}
}
DateTimeFormat format = DateTimeFormat.getFormat("MM/dd/yyyy");
User[] registeredUsers = new User[] { new User(1, "a", format.parse("01/20/2014")),
new User(2, "b", format.parse("05/20/2013")),
new User(3, "c", format.parse("02/20/2014")) };
ListGridRecord[] registeredUsersRecords = new ListGridRecord[registeredUsers.length];
for (int i = 0; i < registeredUsers.length; i++) {
User user = registeredUsers[i];
ListGridRecord record = new ListGridRecord();
record.setAttribute("id", user.getId());
record.setAttribute("firstName", user.getFirstName());
record.setAttribute("registrationDate", user.getRegistrationDate());
registeredUsersRecords[i] = record;
}
DataSourceDateField registeredDate = new DataSourceDateField("registrationDate", "Date");
DataSourceTextField firstName = new DataSourceTextField("firstName", "Name");
DataSourceIntegerField id = new DataSourceIntegerField("id", "ID");
id.setRequired(true);
id.setPrimaryKey(true);
id.setHidden(true);
DataSource ds = new DataSource();
ds.setClientOnly(true);
ds.setFields(id, firstName, registeredDate);
for (int i = 0; i < registeredUsersRecords.length; i++) {
ds.addData(registeredUsersRecords[i]);
}
ListGrid registeredUsersListGrid = new ListGrid();
registeredUsersListGrid.setDataSource(ds);
registeredUsersListGrid.fetchData();
registeredUsersListGrid.draw();
}
}