public static UsuarioDataService GetInstance(string connectionString)
{
if (_instance == null)
{
lock (_lock)
{
if (_instance == null)
{
_instance = new UsuarioDataService(connectionString);
}
}
}
return(_instance);
}
public UsuarioService(string connectionString)
{
_dataService = UsuarioDataService.GetInstance(connectionString);
}