Question

I have two tables to which I have to make insert to

Table 1 : Project

• projectId
• Name
• Description

Table 2 : Access

• id
• userId
• projectId

Now I am using ASP.NET MVC 4 with Entity Framework, now my question is how do I make insert to both this table ?

I mean I know I can make insert to Table 1 using EF, but then I need the projectId(which is generated with the first insert) to make the second insert.

I am not sure of how to go about it. Please some one guide me on this

Answer 1

When you save an object, the EF will populate the auto generated Key fields of the inserted objects:

public ActionResult Index() { 

    var ctx = new FooBarDbContext();

    var foo = new Foo();
    foo.Bar = "FooBar";
    ctx.Foos.Add(foo);
    ctx.SaveChanges();

    // now you have the Id for Foo object.

    var bar = new Bar();
    bar.FooId = foo.Id;
    ctx.Bars.Add(bar);
    ctx.SaveChanges();

    // do what you need now.
}