Lots of work on the member editor - creates new email address prop editor, allows text prop editor to be required based on config, fixes the section directive bug, creating change password prop ed, streamlines more of the services layer to ensure that the things that need to be public are public

src/Umbraco.Web/ModelStateExtensions.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Web.Mvc;
 
@@ -48,6 +49,32 @@ namespace Umbraco.Web
 		//    state.AddModelError("DataValidation", errorMessage);
 		//}
 
+        /// <summary>
+        /// Adds the error to model state correctly for a property so we can use it on the client side.
+        /// </summary>
+        /// <param name="modelState"></param>
+        /// <param name="result"></param>
+        /// <param name="propertyAlias"></param>
+        internal static void AddPropertyError(this System.Web.Http.ModelBinding.ModelStateDictionary modelState, ValidationResult result, string propertyAlias)
+        {
+            //if there are no member names supplied then we assume that the validation message is for the overall property
+            // not a sub field on the property editor
+            if (!result.MemberNames.Any())
+            {
+                //add a model state error for the entire property
+                modelState.AddModelError(string.Format("{0}.{1}", "Properties", propertyAlias), result.ErrorMessage);
+            }
+            else
+            {
+                //there's assigned field names so we'll combine the field name with the property name
+                // so that we can try to match it up to a real sub field of this editor
+                foreach (var field in result.MemberNames)
+                {
+                    modelState.AddModelError(string.Format("{0}.{1}.{2}", "Properties", propertyAlias, field), result.ErrorMessage);
+                }
+            }
+        }
+
         public static IDictionary<string, object> ToErrorDictionary(this System.Web.Http.ModelBinding.ModelStateDictionary modelState)
         {
             var modelStateError = new Dictionary<string, object>();