.NET - Return a List<CustomSerializableObject> from a webservice

Question

Is it a good idea to try and return a strongly typed List of custom objects from a webservice?

Any pitfalls I should know about?

[WebMethod]
public List<CustomSerializableObject> GetList()
{
    List<CustomSerializableObject> listToReturn = new List<CustomSerializableObject>();

    listToReturn.Add(new CustomSerializableObject());
    listToReturn.Add(new CustomSerializableObject());
    listToReturn.Add(new CustomSerializableObject());
    return listToReturn;
}

Answer 1

I don't know of any specific pitfalls to speak of other than possible support for third-parties that would want to communicate to it. You would probably be better to return an array of objects by doing listToReturn.ToArray(). You can easily fill a new list on the client side if that is what you need.