“EF Сохранить изменения” Ответ

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new BookStore())
{
    Author author = new Author()
    {
        FirstName = "Mark",
        LastName = "Johny",
    };
    
    context.Authors.Add(author);
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

EF Сохранить изменения

context.SaveChanges();
Light Louse

EF Сохранить изменения

using (var context = new SchoolContext())
{
    context.Database.Log = Console.Write;

    var standard = context.Standards.Add(new Standard() { StandardName = "1st Grade" });

    context.Students.Add(new Student()
    {
        FirstName = "Rama",
        StandardId = standard.StandardId
    });

    context.SaveChanges();

    context.Courses.Add(new Course() { CourseName = "Computer Science" });
    context.SaveChanges();
}
Light Louse

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