/// <summary>
/// Merges this model with another instance of the same type. Not implemented
/// in the base class.
/// </summary>
/// <param name="other"></param>
public virtual void Merge(AutumnModel other)
{
if (other.GetType() != this.GetType())
throw new ArgumentException("Cannot merge item of a different type.");
if (this.Id > 0 && other.Id != this.Id)
throw new ArgumentException("Cannot merge item with a different id.");
//If a derived class wants this to work, they'll need to implement it.
throw new NotImplementedException();
}