Question

How can I rewrite or is there a way to writing my own custom function that simulates the Custom System.Collections.Generic.Contains but only factors in certain Public Properties of a Custom Object?

For example if I have a custom Object with Properties Name and ID, I would like my Unique Value List to contain all the DISTINCT Names. The ID in this case is irrelevant.

List allvalues = new List ({0, 'Burger'}, {1, 'Pizza'}, {2, 'burger'}) 

I would like it to return me a List which contains the first Object of 0, Burger and 1, Pizza… Irrespective of the ID and the Case of the Name.

Answer 1

Yes use yield return as in:

   private Collection<T> internalCollection;      public Collection<T> GetDistinctList<T>()     {         List<string> names = new List<string>();         foreach(T thisT in internalCollection)            if (!names.Contains(thisT.Name)            {                names.Add(thisT.Name);                yield return thisT;            }     }