More improvements to registration, leaf input create, and charting

WebCms/Views/Shared/EditorTemplates/SelectListViewModel.cshtml

@@ -6,18 +6,18 @@
     var prefix = ViewData.TemplateInfo.HtmlFieldPrefix;
     ViewData.TemplateInfo.HtmlFieldPrefix = string.Empty;
 
-    var required = new { required = "true" };
+    var required = " required";
 
     foreach (var li in Model.ListItems)
     {
         var name = prefix + ".Selected";
         <div class="form-check">
-            <input class="form-check-input" type="radio" name="@name" id="@li.Value" value="@li.Value" @(li.Selected ? " checked" : "")>
+            <input class="form-check-input" type="radio" name="@name" id="@li.Value" value="@li.Value" @(li.Selected ? " checked" : "")@required>
             <label class="form-check-label" for="@li.Value">
                 @li.Text
             </label>
         </div>
-        required = null;
+        //required = string.Empty;
     }
     ViewData.TemplateInfo.HtmlFieldPrefix = prefix;
 }