Additional fields Add, Update and Delete work (too well)

SelectableListView works when programmatically setting selection

WinAppCommon/Messages/EntryFieldNameChangedMessage.cs

@@ -0,0 +1,9 @@
+namespace Messages
+{
+    public class EntryFieldNameChangedMessage
+    {
+        public string OldName { get; set; }
+        public string NewName { get; set; }
+        public string Value { get; set; }
+    }
+}