allow setting of internal and private properties

Dapper/SqlMapper.cs

@@ -403,8 +403,8 @@ private static object GetStructDeserializer<T>(IDataReader reader)
             var il = dm.GetILGenerator();
 
             var properties = typeof(T)
-                .GetProperties(BindingFlags.Public | BindingFlags.Instance)
-                .Select(p => new { Name = p.Name, Setter = p.GetSetMethod(), Type = p.PropertyType })
+                .GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
+                .Select(p => new { Name = p.Name, Setter = p.GetSetMethod(true), Type = p.PropertyType })
                 .Where(info => info.Setter != null)
                 .ToList();
 

Tests/Tests.cs

@@ -168,6 +168,25 @@ public void TestMassiveStrings()
                 .IsEqualTo(str);
         }
 
+        class TestObj
+        {
+            public int _internal;
+            internal int Internal { set { _internal = value; } }
+
+            public int _priv;
+            internal int Priv { set { _priv = value; } }
+        }
+
+        public void TestSetInternal()
+        {
+            connection.ExecuteMapperQuery<TestObj>("select 10 as [Internal]").First()._internal.IsEqualTo(10);
+        }
+
+        public void TestSetPrivate()
+        {
+            connection.ExecuteMapperQuery<TestObj>("select 10 as [Priv]").First()._priv.IsEqualTo(10);
+        }
+
        
 
     }