static void Main(string[] args)
{
SwabhavEFDBContext db = new SwabhavEFDBContext();
//InsertOPeration(db);
//UpdateOPeration(db);
// DeleteOpertion(db);
Console.ReadKey();
IEnumVSIQuary(db);
}
static void IEnumVSIQuary(SwabhavEFDBContext db)
{
var students = db.Students.Where((s) => s.Name.Contains("A"));
var names = students.Take(2).ToList().Select((s) => new { Name = s.Name.Split(' ')[0], s.CGPA });
foreach (var student in names)
{
Console.WriteLine(student.Name + " " + student.CGPA);
}
}
private static void DeleteOpertion(SwabhavEFDBContext db)
{
var student = db.Students.Where((student1) => student1.Name.Equals("MANISH"));
foreach (Student stud in student)
{
db.Students.Remove(stud);
}
db.SaveChanges();
Console.WriteLine("Data deleted!");
}
private static void UpdateOPeration(SwabhavEFDBContext db)
{
var student = db.Students.Where((student1) => student1.Name.Equals("SANAL"));
foreach (Student stud in student)
{
stud.CGPA = 9.5f;
}
db.SaveChanges();
Console.WriteLine("Data updated!");
}
private static void InsertOPeration(SwabhavEFDBContext db)
{
db.Students.Add(new Student {
Id = Guid.NewGuid(), Name = "MANISH", CGPA = 8f
});
db.Students.Add(new Student {
Id = Guid.NewGuid(), Name = "AKASH", CGPA = 8.5f
});
db.Students.Add(new Student {
Id = Guid.NewGuid(), Name = "SANAL", CGPA = 7.5f
});
db.SaveChanges();
Console.WriteLine("Data Saved!");
}
