Hi Wesley,

Is there any more to the error message, e.g. the stack-trace? As I'm not sure where this error is coming from.

Thanks,
- Lee

Hi Lee,

This is the result of the stacktrace

    at System.Guid..ctor(String g)
    at umbraco.presentation.preview.PreviewContent.EnsureInitialized(User user, String previewSet, Boolean validate, Action initialize)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.<>c.<get_GetXmlDelegate>b__42_0(UmbracoContext context, Boolean preview)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.GetXml(UmbracoContext umbracoContext, Boolean preview)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.GetById(UmbracoContext umbracoContext, Boolean preview, Int32 nodeId)
    at Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.GetById(UmbracoContext umbracoContext, Boolean preview, Guid nodeKey)
    at Umbraco.Web.PublishedCache.ContextualPublishedContentCache.GetById(Boolean preview, Guid contentKey)
    at Umbraco.Web.PublishedContentQuery.TypedContent(Guid id)
    at Umbraco.Web.PublishedContentQueryExtensions.TypedContent(ITypedPublishedContentQuery contentQuery, Udi id)
    at Umbraco.Web.PropertyEditors.ValueConverters.MultiNodeTreePickerPropertyConverter.GetPublishedContent[T](T nodeId, UmbracoObjectTypes& actualType, UmbracoObjectTypes expectedType, Func`2 contentFetcher)
    at Umbraco.Web.PropertyEditors.ValueConverters.MultiNodeTreePickerPropertyConverter.ConvertSourceToObject(PublishedPropertyType propertyType, Object source, Boolean preview)
    at Our.Umbraco.DocTypeGridEditor.Models.DetachedPublishedProperty.<.ctor>b__7_1()
    at System.Lazy`1.CreateValue()
    at System.Lazy`1.LazyInitValue()
    at Umbraco.Web.PublishedPropertyExtension.GetValue[T](IPublishedProperty property, Boolean withDefaultValue, T defaultValue)
    at Umbraco.Web.PublishedContentExtensions.GetPropertyValue[T](IPublishedContent content, String alias)
    at WebApplication4.App_Code.TestSurfaceController.Test() in c:\Users\WP-27\documents\visual studio 2017\projects\webapplication4\webapplication4\App_Code\TestSurfaceController.cs:line 16
    at lambda_method(Closure , ControllerBase , Object[] )
    at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
    at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
    at System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState)
    at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult)
    at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
    at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d()
    at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f()

Wesley

is working on a reply...