title: Save multiple child on MVC
body: <p>I'm having some trouble on the concept of saving multiple child for what I need on MVC 5. The entity comes from a currency pair graph on a daily basis that would be the parent. And what I need its to create the parent, lets say Euro/Dollar and then assign important levels that can  be one, two, or ten. So I know I could create the parent and then in other step create the childs but its not very "friendly" as it has to be done for lots of currency pairs and everyday. I wonder if theres a way to do this all in a single page. I don't know if I'm being clear with what I want, but as a concept I think it is like adding tags to a blog, you create the "blog article" and add tags all at same page but you don't know how many tags the article will have. </p>
  
  <p>This are my models</p>
  
  <pre><code>public class Pair
  {
      public int pairID { get; set; }
      public string name { get; set; }
      public DateTime Date { get; set; }
      public virtual IEnumerable&lt;Levels&gt; Levels { get; set; }
  }
  
  public class Levels
  {
      public int levelID { get; set; }
      public double Value { get; set; }
      public string comment { get; set; }
      public int pairID { get; set; }
      public virtual Pair Pair { get; set; }
  }
  </code></pre>