Entity Framework auto generate GUID

Question

I am new to EF so here goes.I have a class which contains the following

public class EmailTemplate
{
    public Guid Id { get; set; }

    [MaxLength(2000)]
             


        

Answer 1

After a long investigation, I found out that in EF Core 3.1 you need to use

builder.Property(e => e.Id).ValueGeneratedOnAdd();

Answer 2

Entity Framework Core Update:

There is no need to use [DatabaseGenerated(DatabaseGeneratedOption.Identity)].
There is no need to use fluent API

EF Core automatically take care of it and generates Id for primary key

Example:

public class DummyEntity
{
    public Guid Id { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }

}

Seeding

    _context.DummyEntities.Add(new DummyEntity
    {
        FirstName = "Abc",
        LastName = "Def",
        Postion = "User",
    });

    _context.SaveChanges();