Added radio button list converter

src/Umbraco.Core/PropertyEditors/ValueConverters/RadioButtonListValueConverter.cs

@@ -0,0 +1,33 @@
+using System;
+using Umbraco.Core.Models.PublishedContent;
+
+namespace Umbraco.Core.PropertyEditors.ValueConverters
+{
+    public class RadioButtonListValueConverter : PropertyValueConverterBase, IPropertyValueConverterMeta
+    {
+        public override bool IsConverter(PublishedPropertyType propertyType)
+        {
+            return propertyType.PropertyEditorAlias.InvariantEquals(Constants.PropertyEditors.RadioButtonListAlias);
+        }
+
+        public override object ConvertDataToSource(PublishedPropertyType propertyType, object source, bool preview)
+        {
+            var intAttempt = source.TryConvertTo<int>();
+            if (intAttempt.Success)
+                return intAttempt.Result;
+
+            return null;
+        }
+
+        public Type GetPropertyValueType(PublishedPropertyType propertyType)
+        {
+            return typeof(int);
+        }
+
+        public PropertyCacheLevel GetPropertyCacheLevel(PublishedPropertyType propertyType,
+                                                        PropertyCacheValue cacheValue)
+        {
+            return PropertyCacheLevel.Content;
+        }
+    }
+}

src/Umbraco.Core/Umbraco.Core.csproj

@@ -508,6 +508,7 @@
     <Compile Include="PropertyEditors\ValueConverters\LabelValueConverter.cs" />
     <Compile Include="PropertyEditors\ValueConverters\ImageCropperValueConverter.cs" />
     <Compile Include="PropertyEditors\ValueConverters\MemberGroupPickerValueConverter.cs" />
+    <Compile Include="PropertyEditors\ValueConverters\RadioButtonListValueConverter.cs" />
     <Compile Include="PublishedContentTypeConverter.cs" />
     <Compile Include="Publishing\UnPublishedStatusType.cs" />
     <Compile Include="Publishing\UnPublishStatus.cs" />