I have a View that contains a ParentModel, which contains 2 Models.
I only want to validate the fields of one or the other. Not both.
Let´s say I have:

```
public ParentModel{
  public BlueUser BlueUser {get; set;}
  public GreenUser GreenUser {get; set;}
}

```

So the user selects either he is a GreenUser or a BlueUser. Each type of user has different fields, and depending which type of User the user selects, I want to only validate the fields on that specific type of user.
How can this be achieved? 

EDIT:
Both forms/models must be on the same View, maybe with some JQuery or Partials?