Nested LINQ Select is returning IEnumerable of IEnumerable

Question

I have following code:

var purchaseItems = this.GetMenuItemRows().Select(
                    a => a.DishListItemRow.GetDishIngredientRows().Select(
                        b => b.PurchaseItemRow));

The LINQ expression is returning result of type IEnumerable<IEnumerable<PurchaseItemRow>>

How do I get a result of type IEnumerable<PurchaseItemRow>?

Use `SelectMany` something like this https://stackoverflow.com/a/47221191/2946329 — Salah Akbari, Nov 23 '17 at 10:14

score 6 · Accepted Answer · answered Nov 23 '17 at 10:13

6

use SelectMany

var purchaseItems = this.GetMenuItemRows().SelectMany(
                    a => a.DishListItemRow.GetDishIngredientRows().Select(
                        b => b.PurchaseItemRow));

answered Nov 23 '17 at 10:13

Sajeetharan

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Nested LINQ Select is returning IEnumerable of IEnumerable

1 Answers1