Topic: An ObjectIdList Class

[It's Alive!]

Thought this might be useful, based off of Tony’s TypedValueList class.

Code: [Select]

public class ObjectIdList : List<ObjectId>
  {
    public ObjectIdList()
    {
    }
    public ObjectIdList(ObjectId src)
    {
      base.Add(src);
    }
    public ObjectIdList(ObjectId[] src)
    {
      base.AddRange(src);
    }
    public ObjectIdList(ObjectIdList src)
    {
      base.AddRange(src);
    }
    public ObjectIdList(ObjectIdCollection src)
    {
      foreach (ObjectId oid in src)
        base.Add(oid);
    }
    public static implicit operator ObjectIdList(ObjectId[] src)
    {
      return ((src != null) ? new ObjectIdList(src) : null);
    }
    public static implicit operator ObjectIdList(ObjectIdCollection src)
    {
      return ((src != null) ? new ObjectIdList(src) : null);
    }
    public static implicit operator ObjectId[](ObjectIdList src)
    {
      return ((src != null) ? src.ToArray() : null);
    }
    public static implicit operator ObjectIdCollection(ObjectIdList src)
    {
      return ((src != null) ? new ObjectIdCollection(src.ToArray()) : null);
    }
  }


[Glenn R]

Hi Daniel,

Nicely done, however, I'm failing to see the use/benefit of this...can you elude as to your thoughts for creating this and possible usage scenarios? Also, how about explicit conversions as well?

[LE]

Daniel;

Is that Alfonso Arau in your avatar?

[It's Alive!]

Hi Daniel,

Nicely done, however, I'm failing to see the use/benefit of this...can you elude as to your thoughts for creating this and possible usage scenarios? Also, how about explicit conversions as well?

It’s only to add a little flexibility to the collection by being able to use the built-in member methods of List. I.e. AddRange(),  Foreach(delegate or lambda expressions)  etc.
I didn’t have a need for explicit operators, but I am sure that could be added. I posted it to show that this technique could be used on other collections where the additional flexibility might convenient i.e, searching, sorting, the future use of in memory LinQ queries etc.

Dan

[It's Alive!]

Daniel;

Is that Alfonso Arau in your avatar?

Yes sir it is, AKA "El Guapo" from The Three Amigos. 
But I am El Guapo too. We are both El Guapo 

[Kerry]

.............

Yes sir it is, AKA "El Guapo" from The Three Amigos. 
But I am El Guapo too. We are both El Guapo 

polymorphism in action ?

[Glenn R]

roflmao Kerry!