How do I select recursive nested entities using LINQ to Entity

Question

I have an entity called Category and the entity contains a IEnumerable called ChildCategories. A category can have these child categories which can have it\'s own child cate

Answer 1

There where some problems with casperOnes code. This works:

public static IEnumerable Flatten(this IEnumerable source, Func> childrenSelector)
    {
        // Do standard error checking here.

        // Cycle through all of the items.
        foreach (T item in source)
        {
            // Yield the item.
            yield return item;

            // Yield all of the children.
            foreach (T child in childrenSelector(item).Flatten(childrenSelector))
            {
                // Yield the item.
                yield return child;
            }
        }
    }