实体框架6.12级联删除（一对多关系）

Question

i have two table parent(id p_key,name) and child(addresid,city, id ForeignKey) table have one to many relationship ,

so if i am deleting any recording from parent table then all related record should be deleted from child table

i am using entity framework code first approach

Answer 1

Add this to your DB Context :

protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    modelBuilder.Entity<parent>()
    .HasOptional(c => c.child)
    .WithOptionalDependent()
    .WillCascadeOnDelete(true);
}

Have a look at this: Enabling Cascade Delete