Delegate

2026-08-12 00:42:57 +00:00 · 2017-04-03 02:31:15 +09:00
parent 69a9bc7a86
commit 9849d5f18d
3 changed files with 50 additions and 1 deletions
@@ -16,5 +16,27 @@ namespace LanguageFeatures.Models
 			}
 			return total;
 		}
+
+		public static IEnumerable<Product> FilterByCategory(this IEnumerable<Product> productEnum, string categoryParam)
+		{
+			foreach (Product prod in productEnum)
+			{
+				if (prod.Category == categoryParam)
+				{
+					yield return prod;
+				}
+			}
+		}
+
+		public static IEnumerable<Product> Filter(this IEnumerable<Product> productEnum, Func<Product, bool> selectorParm)
+		{
+			foreach (Product prod in productEnum)
+			{
+				if (selectorParm(prod))
+				{
+					yield return prod;
+				}
+			}
+		}
 	}
 }