https://www.codeart.dk/expertise/.net/rss/enCodeArt.dkhttps://www.codeart.dk/blog/2026/5/announcing-piwikpro-optimizely-connector/https://www.codeart.dk/blog/2026/5/announcing-piwikpro-optimizely-connector/IntegrationsWeb Content ManagementOptimizely (Episerver)Behavior AnalyticsAddon Development.NET DevelopmentAnalytics has spent the last decade living in another tab — and what's in that tab usually isn't the full story. Between consent requirements, browser restrictions, and the gap between "what marketing wants to know" and "what the tracking script actually captures", most analytics setups end up describing about half the picture. The new Piwik PRO Connector for Optimizely CMS is now live on NuGet, dual-targeted for both CMS 12 (.NET 8) and CMS 13 (.NET 10) from the exact same package — and one of its quieter superpowers is making it dramatically easier to get rich Optimizely context (content type, language, audience membership, block impressions, plus whichever custom dimensions matter for your site) into Piwik PRO, so the dashboards finally know what they're looking at. Editors get analytics next to their content. Developers get a tracking API that doesn't require writing JavaScript by hand. And the privacy-first part comes for free, courtesy of Piwik PRO.Mon, 04 May 2026 20:09:31 Zhttps://www.codeart.dk/blog/2026/3/announcing-piwik-pro-.net-sdkhttps://www.codeart.dk/blog/2026/3/announcing-piwik-pro-.net-sdk.NET DevelopmentBehavior AnalyticsWeb Content ManagementIntegrationsWebsite ImprovementsFor years, developers have treated analytics as something external — a tool marketers use while developers stay focused on applications. But what if analytics data could become a first-class citizen in your .NET applications? That’s the idea behind the new Piwik PRO .NET SDK — a developer-friendly way to track events, query analytics using LINQ-style syntax, and integrate privacy-first analytics directly into modern .NET apps. At CodeArt we helped build the SDK and are now launching open source sample code, including a fully working Blazor sample, as well as good SDK documentation.Mon, 16 Mar 2026 11:31:07 Zhttps://www.codeart.dk/blog/2026/3/ai-generated-optimizely-developer-newsletter/https://www.codeart.dk/blog/2026/3/ai-generated-optimizely-developer-newsletter/Optimizely (Episerver)Artificial Intelligence.NET DevelopmentUpdates in the Optimizely ecosystem are everywhere: blog posts, forums, release notes, NuGet packages, and documentation changes. This newsletter brings the important ones together in one place.Tue, 10 Mar 2026 19:51:35 Zhttps://www.codeart.dk/blog/2026/2/using-headlesskit-to-build-a-head-for-an-optimizely-saas-cms-in-.net-10https://www.codeart.dk/blog/2026/2/using-headlesskit-to-build-a-head-for-an-optimizely-saas-cms-in-.net-10C#Vision Demos & Prototypes.NET DevelopmentWeb Content ManagementFrontend DevelopmentOptimizely (Episerver)Headless has a tendency to promise freedom and deliver alignment meetings. Two codebases. Two sets of models. Two teams trying very hard not to drift apart. With Optimizely SaaS CMS, headless is mandatory. So instead of fighting it, I decided to flip it. What happens if we build the head first — properly, in .NET — and let the CMS adapt to that reality? That experiment became CodeArt.Optimizely.HeadlessKit - now available as open source.Thu, 19 Feb 2026 20:41:36 Zhttps://www.codeart.dk/blog/2025/11/optimizely-package-explorer-now-with-extra-superpowers/https://www.codeart.dk/blog/2025/11/optimizely-package-explorer-now-with-extra-superpowers/.NET DevelopmentWeb Content ManagementOptimizely (Episerver)Tips and TricksIf you’ve ever opened a .episerverdata file and asked “What is in here?” (guilty as charged) — then this is your moment. We’ve given our open-source tool CodeArt.Optimizely.PackageExplorer a fresh update with new features and polish, so you can slice, dice and explore those content packages with ease. Grab some coffee (or your beverage of choice) and let’s dive in.Thu, 20 Nov 2025 20:27:49 Zhttps://www.codeart.dk/blog/2025/8/opalytics-under-the-hood-pt.-2--from-piwik-pro-to-opal-and-why-i-rolled-my-own-tools-sdkhttps://www.codeart.dk/blog/2025/8/opalytics-under-the-hood-pt.-2--from-piwik-pro-to-opal-and-why-i-rolled-my-own-tools-sdk.NET DevelopmentArtificial IntelligenceBehavior AnalyticsOptimizely (Episerver)C#Vision Demos & PrototypesIn the previous post , I showed how Opalytics lets you ask human questions and get analytics answers. This time we’re going full dev-mode: OAuth tokens, discovery docs, tool calling—and a small detour where I didn’t use the official SDK and built my own attribute-based version instead.Thu, 28 Aug 2025 11:43:31 Zhttps://www.codeart.dk/blog/2025/8/opalytics-turning-analytics-into-actionable-insights-with-opal--piwik-pro/https://www.codeart.dk/blog/2025/8/opalytics-turning-analytics-into-actionable-insights-with-opal--piwik-pro/Optimizely (Episerver)Behavior AnalyticsWeb Content ManagementArtificial Intelligence.NET DevelopmentVision Demos & PrototypesMy hackathon project for Optimizely OMVPs: plugging Piwik PRO into Opal, so you can just ask questions instead of fiddling with filters.Mon, 25 Aug 2025 15:04:03 Zhttps://www.codeart.dk/blog/2025/5/adding-granular-editor-access-control-to-built-in-parts-of-optimizely-cms-12/https://www.codeart.dk/blog/2025/5/adding-granular-editor-access-control-to-built-in-parts-of-optimizely-cms-12/Optimizely (Episerver).NET DevelopmentWeb Content ManagementTips and TricksC#A classic challenge in Optimizely CMS (well, really in any system I guess), is to ensure that the right people have the right access - and that potentially dangerous actions can't be accidentally done by unqualified users.Fri, 30 May 2025 11:31:25 Zhttps://www.codeart.dk/blog/2025/5/scan-file-uploads-for-malware-in-episerveroptimizely-cms-11---episerver-forms/https://www.codeart.dk/blog/2025/5/scan-file-uploads-for-malware-in-episerveroptimizely-cms-11---episerver-forms/.NET DevelopmentOptimizely (Episerver)C#Tips and TricksDo you have forms on your website where visitors can upload files? Perhaps CV's for job applications or documentation for claims, or other kind of applications or images? And have you thought about the risk of these files potentially containing malware right on your production webserver? A client of mine has this concern on an EPiServer (now Optimizely) CMS 11 using the EPiServer Forms extension and I investigated and found an approach to handle it.Fri, 09 May 2025 14:08:19 Zhttps://www.codeart.dk/blog/2024/8/series-headless-site-on-optimizely-graph-exploring-interesting-ways-we-can-query-the-content/https://www.codeart.dk/blog/2024/8/series-headless-site-on-optimizely-graph-exploring-interesting-ways-we-can-query-the-content/.NET DevelopmentWeb Content ManagementOptimizely (Episerver)Information RetrievalAPI BuildingLook up in the sky! It's a bird! No, wait - it's Optimizely Graph! This is part 2 in the blog post series where we explore how a fully functioning headless site can be build in .NET core using Optimizely Graph, and in this post we'll see how Optimizely Graph is both a powerful search & query engine (on par with good old Episerver Find) - but also how it can fully replace the content delivery API.Sat, 24 Aug 2024 12:44:54 Zhttps://www.codeart.dk/blog/2024/6/new-series-building-a-.net-core-headless-site-on-optimizely-graph-and-saas-cmshttps://www.codeart.dk/blog/2024/6/new-series-building-a-.net-core-headless-site-on-optimizely-graph-and-saas-cmsWeb Content Management.NET DevelopmentOptimizely (Episerver)Welcome to this new multi-post series where you can follow along as I indulge in yet another crazy experiment: Can we make our beloved Alloy site run as a headless site on top of Optimizely Graph (and SaaS CMS) using a mix of both MVC, Razor Pages and Blazor components - and can we make both the developer and editor experience as we are used to in classic Optimizely/Episerver sites? Let's find out!Fri, 14 Jun 2024 14:59:16 Zhttps://www.codeart.dk/blog/2023/12/christmas-countdown-3-nihs---not-invented-here-syndrome-in-real-life/https://www.codeart.dk/blog/2023/12/christmas-countdown-3-nihs---not-invented-here-syndrome-in-real-life/.NET DevelopmentOptimizely (Episerver)Web Content ManagementWebsite ImprovementsTips and TricksTech TalkOne of the most common and dreaded diseases in web site development often go undiagnosed and untreated for a long time. But it really should be, cause the effects are scary. Yes, I'm talking about the Not-Invented-Here SyndromeThu, 21 Dec 2023 06:00:31 Zhttps://www.codeart.dk/blog/2023/12/christmas-countdown-5-sure-our-servers-are-locked-up-tight-in-the-basement/https://www.codeart.dk/blog/2023/12/christmas-countdown-5-sure-our-servers-are-locked-up-tight-in-the-basement/.NET DevelopmentWeb Content ManagementOptimizely (Episerver)Securing your website is as important a topic as it is large and complex. In this post I will not go into too many details, but highlight a few problems I often see in Optimizely/EPiServer CMS implementations.Tue, 19 Dec 2023 06:00:31 Zhttps://www.codeart.dk/blog/2023/12/christmas-countdown-7-ddos-whats-that-what-do-you-mean-prepared/https://www.codeart.dk/blog/2023/12/christmas-countdown-7-ddos-whats-that-what-do-you-mean-prepared/.NET DevelopmentWeb Content ManagementOptimizely (Episerver)Website ImprovementsTips and TricksTech TalkIs your website ready to handle intense usage scenarios like DDoS attacks or black friday? Many people think that testing performance is the same as testing for load - but it's not and sometimes it might even work against each other.Sun, 17 Dec 2023 06:00:32 Zhttps://www.codeart.dk/blog/2023/12/christmas-countdown-8-code-maintenance-is-90-of-the-work/https://www.codeart.dk/blog/2023/12/christmas-countdown-8-code-maintenance-is-90-of-the-work/.NET DevelopmentOptimizely (Episerver)Web Content ManagementWebsite ImprovementsTips and TricksTech TalkGreenfield development is by far the most fun for everybody. So it's easy to forget that most development work is actually maintenance. And every new line of code you write means more code to maintain. Almost all codebases I review have significant technical debt. And the debt starts to accumulate from the moment you start coding.Sat, 16 Dec 2023 06:00:31 Zhttps://www.codeart.dk/blog/2023/12/christmas-countdown-9-what-viewmodels-nah-we-dont-need-those/https://www.codeart.dk/blog/2023/12/christmas-countdown-9-what-viewmodels-nah-we-dont-need-those/Tech TalkC#Tips and TricksOptimizely (Episerver)Web Content Management.NET DevelopmentThis is another classic - with a big impact! Since recycling is great, why don't we just reuse the content model as a view model? We can just enrich it in the controller, right?Fri, 15 Dec 2023 06:00:30 Zhttps://www.codeart.dk/blog/2023/12/christmas-countdown-11-dependency-injection-is-not-as-easy-as-it-seems/https://www.codeart.dk/blog/2023/12/christmas-countdown-11-dependency-injection-is-not-as-easy-as-it-seems/Tech TalkTips and Tricks.NET DevelopmentOptimizely (Episerver)Web Content ManagementDependency Injection is an extremely useful pattern. It has been used with EPiServer CMS for years - and with .NET Core it has truly become the go-to method of coupling your business logic together. However, once you start having services depend on other services their lifetimes can give some unexpected difficulties.Wed, 13 Dec 2023 06:00:30 Zhttps://www.codeart.dk/blog/2023/6/optimizely-search--navigation---get-autocomplete-suggestions-in-right-language/https://www.codeart.dk/blog/2023/6/optimizely-search--navigation---get-autocomplete-suggestions-in-right-language/.NET DevelopmentOptimizely (Episerver)Tips and TricksC#When you are using Optimizely Search & Navigation (Find) to help you generate autocomplete suggestions server side in a multi-language scenario it can be tricky (and poorly documented) to figure out how to get the suggestions in the correct language.Mon, 05 Jun 2023 09:50:20 Zhttps://www.codeart.dk/blog/2023/3/using-system.text.json-to-do-polymorphic-json-conversion-in-.net-6https://www.codeart.dk/blog/2023/3/using-system.text.json-to-do-polymorphic-json-conversion-in-.net-6.NET DevelopmentC#When using System.Text.Json to serialize complex objects you sometimes need to go a bit beyond how the default serialization works. Here are a few helpful converters - for example for doing polymorphic conversion.Thu, 30 Mar 2023 10:03:01 Zhttps://www.codeart.dk/blog/2023/1/new-open-source-package-codeart.matomotrackinghttps://www.codeart.dk/blog/2023/1/new-open-source-package-codeart.matomotrackingBehavior AnalyticsVision Demos & PrototypesIntegrationsWeb Content Management.NET DevelopmentAs Google Analytics have gotten harder and harder to use due to GDPR, legal and privacy concerns I have turned more and more to Matomo. I recently completed v.1 of a new open source tracking integration.Mon, 30 Jan 2023 19:11:31 Zhttps://www.codeart.dk/blog/2023/1/when-best-practice-isnt-the-best---dependency-injection-and-optimizely-cms/https://www.codeart.dk/blog/2023/1/when-best-practice-isnt-the-best---dependency-injection-and-optimizely-cms/Life as a CoderOptimizely (Episerver)Web Content Management.NET DevelopmentSome people live and breath 'best practice' development. I am not one of them. Risk is, in-experienced developers (or sometimes experienced) might use them just cause they are 'best practice' and not think more about it. Even when it turns out they are not. Here is little example...Sun, 29 Jan 2023 19:51:32 Zhttps://www.codeart.dk/blog/2022/12/running-optimizely-cms-12-episerver-on-a-raspberry-pi/https://www.codeart.dk/blog/2022/12/running-optimizely-cms-12-episerver-on-a-raspberry-pi/Life as a CoderOptimizely (Episerver)Web Content Management.NET Development.NET Core is cross platform. But can you really run Optimizely CMS 12 and everything needed on a tiny ARM based Raspberry PI? Yes you can, and it's not that hard.Sun, 18 Dec 2022 20:18:38 Zhttps://www.codeart.dk/blog/2022/6/optimizely-developer-meetup-copenhagen---june/https://www.codeart.dk/blog/2022/6/optimizely-developer-meetup-copenhagen---june/.NET DevelopmentWeb Content ManagementOptimizely (Episerver)Vision Demos & PrototypesTech TalkCalling all Optimizely (Episerver) Developers in Copenhagen and surrounding area. It's once again time for a real-life meetup!Thu, 02 Jun 2022 17:45:10 Zhttps://www.codeart.dk/blog/2022/6/optimizely-cms-list-content-recursively-on-a-page---and-list-the-visitor-groups-used/https://www.codeart.dk/blog/2022/6/optimizely-cms-list-content-recursively-on-a-page---and-list-the-visitor-groups-used/Optimizely (Episerver)C#.NET DevelopmentTips and TricksQuite often a lot of the content on pages in Optimizely Content cloud (aka Episerver CMS) is structured in blocks placed in content areas. And often even blocks in blocks. Sometimes it's needed to quickly get a list of all the content items on a page - and sometimes you might also be interested in which visitor groups are used. Here is a couple of extension methods to help you with that.Wed, 01 Jun 2022 19:55:39 Zhttps://www.codeart.dk/blog/2021/11/listing-all-endpoints-in-optimizely-cms-12--.net-5https://www.codeart.dk/blog/2021/11/listing-all-endpoints-in-optimizely-cms-12--.net-5.NET DevelopmentAddon DevelopmentOptimizely (Episerver)Routing has significantly changed in .NET 5 - and that affects many parts of Optimizely (Episerver) CMS 12. For example we have to get used to endpoints a middleware. As I am working on upgrading a few different add-ons I found it could be useful to see which routes are registered out of the box.Wed, 24 Nov 2021 21:13:08 Zhttps://www.codeart.dk/blog/2021/10/anti-pattern-dont-modify--optimizely-cms-episerver--content-objects-in-the-controller/https://www.codeart.dk/blog/2021/10/anti-pattern-dont-modify--optimizely-cms-episerver--content-objects-in-the-controller/C#Tips and TricksWeb Content Management.NET DevelopmentOptimizely (Episerver)Using your content object (CurrentPage / CurrentBlock) as a makeshift viewmodel where you change settings or extend it with user data in the controller before passing it to the view, is unfortunately (and to my surprise) a pretty wide-spread practice among developers implementing Optimizely (Episerver) web sites. But it really needs to stop.Thu, 28 Oct 2021 12:14:00 Zhttps://www.codeart.dk/blog/2021/10/optimizely-episerver-split-folder-structure-for-blocks-and-media/https://www.codeart.dk/blog/2021/10/optimizely-episerver-split-folder-structure-for-blocks-and-media/Tips and TricksOptimizely (Episerver)Web Content Management.NET DevelopmentSince version 7 or 8 of Episerver (now Optimizely CMS), the shared Blocks and Media have been sharing the same folder structure. Some people see a benefit with the shared structure, and some absolutely hate it. Personally, I have gotten used to it - but I was recently asked if it's possible to split it up. Here's the hack I came up with.Wed, 06 Oct 2021 06:00:45 Zhttps://www.codeart.dk/blog/2021/9/optimizely-gridview-customizations/https://www.codeart.dk/blog/2021/9/optimizely-gridview-customizations/Tips and Tricks.NET DevelopmentOptimizely (Episerver)One of my favorite add-ons these days is the GridView. It's pretty customizable, but some of the customizations aren't the most well documented. Here's a couple of tricks I've found handy when using it.Thu, 23 Sep 2021 05:30:24 Zhttps://www.codeart.dk/blog/2020/6/experimenting-with-wikipedia-topics-for-content/https://www.codeart.dk/blog/2020/6/experimenting-with-wikipedia-topics-for-content/Vision Demos & PrototypesWeb Content ManagementInformation RetrievalBig Data Elastic Search.NET DevelopmentAutomatically tagging your content with topics from a known, well described topic base like Wikipedia can have many cool uses. You can organize your content, suggesting keywords and outbound links, not to mention that you can build up interest profiles of your visitors. These interest profiles can the be used to suggest appropriate content and keep your visitors engaged. Inspired by Episerver Content Intelligence and a couple of earlier projects I've done in the past, I decided to perform an experiment to see how far I could get with a DIY approach as opposed to the traditional cloud-based NLP/AI.Wed, 03 Jun 2020 13:52:14 Zhttps://www.codeart.dk/blog/2020/5/reading-very-large-gzipped-json-files-in-c/https://www.codeart.dk/blog/2020/5/reading-very-large-gzipped-json-files-in-c/.NET DevelopmentC#This is a little code snippet that I often find quite handy. It's a piece of c# code that opens a gzipped json file and iterates through the items in it. Since it takes it piece by piece (as opposed to loading everything in memory) it's can pretty much handle files of any size.Sun, 31 May 2020 08:55:04 Zhttps://www.codeart.dk/blog/2020/3/free-online-course---c-and-.net-core-introductionhttps://www.codeart.dk/blog/2020/3/free-online-course---c-and-.net-core-introduction.NET DevelopmentC#Life as a CoderTech TalkThe best way to learn coding - and in particular c# and .NET Core - is to code. CodeArt is proud to make all the teaching materials to a newly created course online and freely available for self-study.Fri, 20 Mar 2020 14:19:06 Zhttps://www.codeart.dk/blog/2020/3/packages-restored-but-your-project-is-still-missing-references/https://www.codeart.dk/blog/2020/3/packages-restored-but-your-project-is-still-missing-references/.NET DevelopmentAddon DevelopmentC#Here is a classic error that happens to me a lot. It's extremely simple, yet sometimes I find myself spending too much time trying to remember what it is that goes wrong.Mon, 09 Mar 2020 10:26:02 Zhttps://www.codeart.dk/blog/2019/2/annotate-the-web/https://www.codeart.dk/blog/2019/2/annotate-the-web/Web Content ManagementVision Demos & Prototypes.NET DevelopmentAs a little experiment I just launched a basic annotation service, that let's you put comments on screenshots of a web page in order to collaborate during creation.Tue, 26 Feb 2019 21:42:34 Zhttps://www.codeart.dk/blog/2018/10/fb2pdf---how-abandonware-gets-distributed/https://www.codeart.dk/blog/2018/10/fb2pdf---how-abandonware-gets-distributed/.NET DevelopmentA long time ago I did a small weekend project to fix a problem my wife was having with her e-reader. I shared it on my blog and then forgot all about it. Until now, that is.Sat, 27 Oct 2018 09:53:22 Zhttps://www.codeart.dk/blog/2018/10/admin-mode-plugin-to-manage-content-type-suggestions/https://www.codeart.dk/blog/2018/10/admin-mode-plugin-to-manage-content-type-suggestions/Tips and TricksOptimizely (Episerver)Web Content ManagementAddon Development.NET DevelopmentIf you have a site with a lot of different content types, it can be a good idea to help Episervers Automatic Content Type suggestion feature along. Here is a basic Admin mode tool - in good old webforms (yes, I washed my hands after I made it) that will let administrators / and super-editors configure exactly which content types to suggest when.Fri, 12 Oct 2018 05:00:20 Zhttps://www.codeart.dk/blog/2018/10/auto-tagging-using-search/https://www.codeart.dk/blog/2018/10/auto-tagging-using-search/Web Content ManagementVision Demos & PrototypesTips and TricksInformation Retrieval Elastic SearchArtificial Intelligence.NET DevelopmentYou don't always have to go the full AI route to get AI like results. In this blog post I'll describe an approach I've used several times (and for multiple purposes) with pretty decent results. Instead of classification algorithms, deep learning or neural networks I'll just simply query my favorite search engine.Sun, 07 Oct 2018 09:47:24 Zhttps://www.codeart.dk/blog/2018/10/storage-performance-aftermath---elasticsearch-joins-the-fight/https://www.codeart.dk/blog/2018/10/storage-performance-aftermath---elasticsearch-joins-the-fight/AzureC# Elastic Search.NET DevelopmentIn 3 previous blog posts I compared various azure storage technologies with regards to performance and scalability in typical web usage scenarios. I was actually done with the series, but with all that interesting data, I decided to throw my current favorite search/storage/no-sql technology into the mix to get an idea about how it all compares. So - ElasticSearch enters the competition!Tue, 02 Oct 2018 15:45:07 Zhttps://www.codeart.dk/blog/2018/9/azure-storage-performance-showdown-post-3/https://www.codeart.dk/blog/2018/9/azure-storage-performance-showdown-post-3/Tips and TricksAzure.NET DevelopmentThis is the 3rd post in my Azure Storage Performance comparison. So far we've examined the typical scenario of storing/retrieving data that most dynamic websites of today deal with. In this post, we'll take a closer look at Update and Delete - and finally review the financial aspects.Wed, 26 Sep 2018 18:32:05 Zhttps://www.codeart.dk/blog/2018/9/azure-storage-performance-showdown-post-2/https://www.codeart.dk/blog/2018/9/azure-storage-performance-showdown-post-2/.NET DevelopmentAzureTips and TricksIn this second post of my performance series looking at Azure storage we're going to take a good look at Read speeds for the various storage types.Mon, 24 Sep 2018 05:00:33 Zhttps://www.codeart.dk/blog/2018/9/azure-storage-performance-showdown/https://www.codeart.dk/blog/2018/9/azure-storage-performance-showdown/Tips and Tricks.NET DevelopmentAzureAlmost every project has some data you want to persist, then read, search through, update and eventually delete. With Azure there are loads of great possibilities - for example Blob Storage, Table Storage, CosmosDb, SQL Azure. I've decided to do some simple and fairly naive tests to compare these for some typical usage scenarios and see how they perform.Fri, 21 Sep 2018 06:02:24 Zhttps://www.codeart.dk/blog/2018/9/vs2017-debugger-timeout/https://www.codeart.dk/blog/2018/9/vs2017-debugger-timeout/.NET DevelopmentTips and TricksOptimizely (Episerver)A really annoying problem has been bothering me for a while with VS2017. When debugging most web apps, I often encounter time-outs. For some reason it happens nearly every time I do it with Episerver projects. Here is the solution.Mon, 10 Sep 2018 05:45:00 Zhttps://www.codeart.dk/blog/2018/9/gist-content-provider/https://www.codeart.dk/blog/2018/9/gist-content-provider/IntegrationsAddon Development.NET DevelopmentWeb Content ManagementOptimizely (Episerver)Always preferring coding over 'real work' I figured that it would be pretty neat if I could just drag and drop my gists on GitHub directly into my blog posts here in Episerver in order to embed them. Naturally, a content provider seemed like the right choice...Mon, 10 Sep 2018 05:00:20 Zhttps://www.codeart.dk/blog/2018/9/error-no-parameterless-constructor-defined-for-this-object/https://www.codeart.dk/blog/2018/9/error-no-parameterless-constructor-defined-for-this-object/Tips and Tricks.NET DevelopmentC#Optimizely (Episerver)Ever started a site from scratch rather than the reference site and run into this classic error? Here's a hint for you.Wed, 05 Sep 2018 05:00:21 Z