Paul Bartrum fix for inherited class deserialization

Dapper/SqlMapper.cs

@@ -556,7 +556,12 @@ private static object GetStructDeserializer<T>(IDataReader reader)
 
             var properties = typeof(T)
                 .GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
-                .Select(p => new { Name = p.Name, Setter = p.GetSetMethod(true), Type = p.PropertyType })
+                .Select(p => new 
+                { 
+                    Name = p.Name, 
+                    Setter = p.DeclaringType == typeof(T) ? p.GetSetMethod(true) : p.DeclaringType.GetProperty(p.Name).GetSetMethod(true), 
+                    Type = p.PropertyType 
+                })
                 .Where(info => info.Setter != null)
                 .ToList();
 

Tests/Tests.cs

@@ -317,5 +317,27 @@ public void TestMultiMapDynamic()
             connection.Execute("drop table #Users drop table #Posts");
         }
 
+        class InheritanceTest1
+        {
+            public string Base1 { get; set; }
+            public string Base2 { get; private set; }
+        }
+
+        class InheritanceTest2 : InheritanceTest1
+        {
+            public string Derived1 { get; set; }
+            public string Derived2 { get; private set; }
+        }
+
+        public void TestInheritance()
+        {
+            // Test that inheritance works.
+            var list = connection.Query<InheritanceTest2>("select 'One' as Derived1, 'Two' as Derived2, 'Three' as Base1, 'Four' as Base2");
+            list.First().Derived1.IsEqualTo("One");
+            list.First().Derived2.IsEqualTo("Two");
+            list.First().Base1.IsEqualTo("Three");
+            list.First().Base2.IsEqualTo("Four");
+        }
+
     }
 }