EPiServer Archive

As I explained in my previous article Different subsets of properties in different EPiServer multi sites using same content type model my current client is building a common platform for 7 websites spread over 3 EPiServer installations. As the platform grew the need for restructuring grew as well. It was no longer viable to keep all content types in separate assemblies in order to add …

For my current client we are building 7 websites spread over (at least) 3 EPiServer multi site installations. Rather than seeing each of them as separate entities, they all consume the same base code from a common platform (such as infrastructure, EPiServer content types, and so on). An issue that you’re facing when using the same block or page type on several EPiServer installations is …

For a client’s website there was a need to implement EPiServer‘s output cache with different expire times not based on PageType, but rather page instance. After weighing pros and cons we decided on a solution with a number of ContentArea properties on the website’s settings page. Pages dropped in each area would then get different cache timeouts depending on property. Also, thanks to Svante Seleborg …

Lately I spent some time investigating 404 NotFound responses from an EPiServer Content Delivery Api installation. While the SiteDefinition Api URL worked just fine, the problem was that the API returned 404 NotFound for all contents requested. Here are some pointers to determine possible reasons. Thanks to Svante Seleborg for helping out with debugging. EDIT: Matthew Mols have written an useful article for Getting started …

If you read my previous article React and EPiServer: Aggregated output with EPiServer.ContentDeliveryApi you saw a way of including your own aggregated data through properties in the content model classes. Since the JOS Content Serializer also has a very useful ignore attribute, ContentSerializerIgnoreAttribute, I’d love the EPiServer Content Delivery Api to have one as well. Removing superfluous properties from EPiServer ContentDeliveryApi output Since the EPiServer …

If you read my previous article on React and EPiServer: Moving to EPiServer Headless (EPiServer.ContentDeliveryApi) with friendly URLs – Quick POC, you’ll know I wanted to output EPiServer Content information by friendly URL to a page rather than using the headless API’s own paths. This I did, but what about aggreagated information? You know, the stuff that are using for instance content from other EPiServer …

So EPiServer released a beta version of the ContentDeliveryApi. Nice. My current client uses the JOS Content Serializer for creating JSON data from EPiServer pages for view, preview and on-page-editing with React, as described in previous articles. However, sooner or later it will be neccessary to start using EPiServer’s own methods for this. I had a quick look at the API functionality, and it seems …

I often hear people saying things like “Don’t use the ServiceLocator, you can’t write unit tests with it”, or “EPiServer‘s ServiceLocator will really cause problems in your unit tests”. It really will not though, and it’s quite easy to set up. Simple base class for unit testing with EPiServer’s ServiceLocator Quite often the argument is that the ServiceLocator’s container and your mocking framework’s container are …

In a previous article I wrote about React and EPiServer – Custom rendering of EPiServer block in XhtmlString field without partial block controller, as we’re using the JOS Content Serializer to make JSON of our EPiServer content. This is in order to pass it to React. We were using the version 2.0.1, and it differs a bit on how things are done now (currently latest …

In an attempt to prevent TinyMCE from splitting up the p-tags when dropping an EPiServer block into an XHtml property field in edit mode, I tried adding div as a valid child to p within the editor. As we have added custom rendering of your blocks for JSON output (see article React and EPiServer – Custom rendering of EPiServer block in XhtmlString field without partial …

For my current client, we had a need to allow EPiServer editors to wrap XHtmlSting field content in aside tags in a user friendly manner. The first most obvious thought went to the styles drop down list and EPiServer’s editor.css file, however after a few tries and a bit of Ilspy‘ing I realized that the aside tag element is not supported by the current implementation. …

So just a follow up on the previous article React and EPiServer – Custom rendering of EPiServer block in XhtmlString field without partial block controller in regards to friendly URLs. We noticed that all our internal EPiServer links in the XHtml field properties remained on the internal form ~/link/{guid}.aspx, even in the view mode. The reason for this was really quite obvious since we had …

For my current client we’re building a component based platform as a common feature hub for serveral large EPiServer websites. For this, we have stripped away the default Razor based rendering that is normally used for the view and edit modes, and replaced it with React all the way through. Having React render blocks through ContentArea properties for the view and on-page-edit modes may not …

I saw this JavaScript error earlier this week, and thought I’d write a few lines about it. It appears as you try to submit a form created with the EPiServer Forms functionality, that likely has custom validators on some of it’s fields. As EPiServer Forms tries to run it’s client side validation on the fields it gets presented with one requiring a custom validator; which …

When you’re developing custom EPiServer Forms field blocks you sometimes need to add your own custom validation as well. In this article you’ll see an example of how to add client side validation for the Luhn algorithm in a custom textfield block. This article assumes that you already have server side validation on your EPiServer Forms field; covered in article EPiServer Forms: Adding custom server …

When you’re adding custom EPiServer Forms field blocks to your solution, you occasionally have the need for adding custom validation as well. Here is a sample of how to add a custom server side validation to your textfield block; you will probably also need client side validation for this, please see the article EPiServer Forms: Adding custom client side validation to form field (Luhn algorithm). …

There may arise situations where your custom EPiServer Forms field blocks make no sense without your custom validation code being applied as the website visitor submits the form. In these cases it may be useful to help the web editor by preventing the need to tick the correct validation checkbox in the form element block. Creds to my collegue Christer Bermar for his work on …

I’ve been doing a lot of work with EPiServer Forms for two of my clients recently. They both have more or less complex special form fields they need for their business; ranging from the addition of simple character counters to allowing the web editors to connect EPiServer Forms elements to fields in a SOAP API. This article is just to cover basics in regards to …

By default, EPiServer Form views goes in the directory /Views/Shared/ElementBlocks/, however if you’d like them placed elsewhere, this is easily done by adding a simple service configuration and extending EPiServer’s CustomViewLocationBase making an addition to it’s Paths array; see below. MyCustomViewLocationBase.cs Above code will allow you to keep views in a Forms directory in the Views/Shared folder.

In one of my current projects EPiServer‘s edit mode suddenly stopped working. Only the top bar loaded, while the rest failed due to a JavaScript error (see image below). NetworkError: 500 Internal Server Error caused by GetResourcesDictionary throwing NullReferenceException To investigate, we tried surfing to the failing JavaScript resource (http://{host}/EPiServer/Shell/10.7.1.0/ClientResources/EPi/shell/ui/nls/en-us/contenttypes.js) only to discover that the 500 Internal Server Error was caused by a NullReferenceException. Stack …