Add entities - explicity transaction

medium-begin-transaction.cs

var employee = new Employee
{
      Name = "John Doe",
      Entries = new List<TimeEntry>
      {
            new TimeEntry
            {
                  Start = TimeSpan.FromHours(8),
                  End = TimeSpan.FromHours(12)
            }
      }
};
context.Add(employee);

using var transaction = context.Database.BeginTransaction();

context.SaveChanges();

transaction.Commit();