Question

I have a table whose primary key id is an identity column. I think that when a new record is created, id will be incremented by 1.

However I found that it is 0 while debugging. Why?

The necessary code:

  public DbSet<testDetails> testDetailRecords { get; set; }
  testDetails test = testContext.testDetailRecords.Create();
  // test.id is 0 when hover over it
  public class testDetails : IEntityWithRelationships
  {
      [Key]
       [Required]
       [Display(Name = "Primary Key", Description = "Primary Key")]
       [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
       public long id { get; set; }

Answer 1

The record is not created until you commit it with a SaveChanges().