- add method to get inherited attributes for properties

GBase/Helpers/Attributes.cs

@@ -0,0 +1,19 @@
+// Author: Gockner, Simon
+// Created: 2020-11-13
+// Copyright(c) 2020 SimonG. All Rights Reserved.
+
+using System;
+using System.Linq;
+using System.Reflection;
+
+namespace GBase.Helpers
+{
+    internal static class Attributes
+    {
+        public static T GetAttributeFromInheritedInterfaces<T>(this PropertyInfo propertyInfo) where T : Attribute =>
+            propertyInfo.DeclaringType?.GetInterfaces()
+                .SelectMany(i => i.GetProperties().Where(p => p.Name.Equals(propertyInfo.Name)))
+                .Select(p => p.GetCustomAttribute<T>())
+                .FirstOrDefault();
+    }
+}