Tip: Use Yield Instead of a List in C# for Iterations on Collections

You can use the yield keyword to hold and return the data to the caller. See below for an example.

Public static IEnumerable ExampleMethod()

{
            List li = new List();
            foreach (int item in li)
            {
                if (item  3)
                {
                    li.Add(i);
                }
            }

          //Instead of the above, you could use Yield like below
           foreach (int item in ListCollection)
            {
                if (item  3) yield return item;
            }

}

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