csharp using (var session = store.OpenSession()) { using (var transaction = session.Advanced.DocumentStore.OpenTransaction()) { try { session.Store(new Employee { Id = "employees/1", Name = "John Doe", Age = 30 }); transaction.Commit(); } catch (Exception ex) { transaction.Rollback(); Console.WriteLine($"Transaction rolled back: {ex.Message}"); } } } csharp public class Employee { public string Id { get; set; } public string Name { get; set; } public int Age { get; set; } [ConcurrencyCheck] public int Version { get; set; } }


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