Merge branch 'Reflection' of Common/Utils into dev

ICD.Common.Utils/ReflectionUtils.cs

@@ -414,5 +414,43 @@ namespace ICD.Common.Utils
 				throw new InvalidCastException(message, e);
 			}
 		}
+
+		/// <summary>
+		/// Subscribes to the event on the given instance using the handler and callback method.
+		/// </summary>
+		/// <param name="instance">The instance with the event. Null for static types.</param>
+		/// <param name="eventInfo">The EventInfo for the event.</param>
+		/// <param name="handler">The instance with the callback MethodInfo. Null for static types.</param>
+		/// <param name="callback">The MethodInfo for the callback method.</param>
+		/// <returns></returns>
+		public static Delegate SubscribeEvent(object instance, EventInfo eventInfo, object handler, MethodInfo callback)
+		{
+			if (eventInfo == null)
+				throw new ArgumentNullException("eventInfo");
+
+			if (callback == null)
+				throw new ArgumentNullException("callback");
+
+			Delegate output = CreateDelegate(eventInfo.EventHandlerType, handler, callback);
+			eventInfo.AddEventHandler(instance, output);
+			return output;
+		}
+
+		/// <summary>
+		/// Unsubscribes from the event on the given instance.
+		/// </summary>
+		/// <param name="instance">The instance with the event. Null for static types.</param>
+		/// <param name="eventInfo">The EventInfo for the event.</param>
+		/// <param name="callback">The Delegate to be removed from the event.</param>
+		public static void UnsubscribeEvent(object instance, EventInfo eventInfo, Delegate callback)
+		{
+			if (eventInfo == null)
+				throw new ArgumentNullException("eventInfo");
+
+			if (callback == null)
+				throw new ArgumentNullException("callback");
+
+			eventInfo.RemoveEventHandler(instance, callback);
+		}
 	}
 }