c# - Automatically set foreign key in grandchild table in Entity Framework 6 -

say have following objects

public class myparent {     public long id { get; set; }     public string name { get; set; } }  public class mychild {     public long parentid;     public virtual parent parent;     public long id { get; set; }     public string name { get; set; } }  public class mygrandchild{     public long parentchildid;     public virtual mychild parentchild;     public long id { get; set; }     public string name { get; set; } } 

now myparent top-level object, have child of mychild, , mychild has child of mygrandchild.

in tables created, get

myparent --id --name  mychild -- parentid -- id -- name  mygrandchild -- parentchildid -- id -- name 

now useful have foreign key myparent in mygrandchild table.

i have tried changing mygrandchild object this

public class mygrandchild{     public long parentid;     public virtual myparent parent;     public long parentchildid;     public virtual mychild parentchild;     public long id { get; set; }     public string name { get; set; } } 

but error thrown cascase delting, , had add following fluentapi.

modelbuilder<mygrandchild>()         .hasrequired(e => e.parent)     .withmany()     .hasforeignkey(e => e.parentid)     .willcascadeondelete(false); 

now works, forces manually have set .parent property on mygrandchild.

is there way of telling entity framework want store parent parent foreign key , have set manually?