Mathias Kunto Archive

EPiServer CustomProperty: jQuery image slide show with HTML captions and smooth transitions using Dev7studios Nivo Slider

While searching for a pretty looking image slide show plugin that would not need me to have a Flash player installed on the client computer, or on the client iPad for that matter, I stumbled across an interesting piece of jQuery; the Nivo Slider from Dev7studios. While there are plenty of WordPress plugins using the Nivo Slider (none of the ones I tried actually working …

How to make EPiServer surveil your config files notifying you on change

I have been a little bit dry on coding inspiration lately, until the other day when my collegue Karl Ahlin gave me an interesting idea concerning monitoring of configuration files. While I enjoyed coding it, I will leave it unsaid if and where it could actually create value. There may still be a few what ifs with the approach, and some of it may be …

Visual aid for finding page usages directly in EPiServer edit mode page tree extending node tooltips

Recently, I have found myself wanting to know what pages are referencing certain other pages, or sub pages for that matter, while surfing around in the EPiServer edit mode. Having worked with control adapters to extend built-in EPiServer functionality quite a lot lately, I decided to create a simple one that would make my life easier. Code at GitHub as usual. There is really nothing …

Think things through, or: Simple way to 404 Not Found instead of EPiServer login screen for unpublished pages

I spent some time today attempting to make visitors land on a custom 404 Not Found error page when surfing to EPiServer pages that are no longer published; i.e. pages where the StopPublish date has passed (click here to skip my rant and go directly to the solution). The behaviour that we were experiencing on our site was an automatic redirect to EPiServer’s /Util/login.aspx with …

Revisited and improved: PageType based filtering of EPiServer’s EditMode PageTree

Some time ago I developed a small plug-in to EPiServer‘s edit mode page tree, allowing web editors to filter its pages based on all available page types. I decided to spend this weekend in the sun on my balcony with my laptop extending the functionality a great deal. The code is as usual available over at GitHub, and also as a NuGet package in the …

Being friends with the PropertyControlClassFactory, or: 101 ways to change EPiServer built-in property appearances

As I have been playing around with using ControlAdapters to change the rendering of built-in EPiServer properties lately, I got curious on what else I could possible do to modify them. As it turns out, the EPiServer PropertyControlClassFactory is a great ally in doing this. Hence, this post mostly revolves around different ways of getting it to do what you want. The example source code …

The <EPiServer:Property .. /> just for fun, what output really gets generated for those PageData Property Members?

I created a few test page types along with some templates and EPiServer pages in order to test outputs from <EPiServer:Property .. />. The HTML comments are not part of the output, obviously, and I cleaned away attributes such as ids, inline styles and CSS classes. Furthermore, I chose to be blind to how useful outputting some of these properties like this really is; you …

How to embed EPiServer resources such as GuiPlugIns and Pages together with Images, JavaScripts and Stylesheets in droppable assembly binaries

Recently I got slapped back into reality receiving a Twitter message from my collegue Patrik Akselsson in which he kindly asked me to hand him a GitHub link to the code from one of my blog posts. Being long overdue uploading my code into a public repository and constructing NuGet packages for my EPiServer features, I decided to do so for all my relevant posts. …

Complete and concrete example of what an ASP.NET WebForms Model-View-Presenter project may look like using StructureMap, NUnit and AutoMoq

For quite some time now I have been thinking of creating some sort of sample project to show how a Model-View-Presenter approach may be used in an ASP.NET WebForms project. Lots of what is out there on this subject seem to be rather fluffy in nature, bits and pieces, not really giving you everything that you need; especially if you have not worked with a …

Internet Explorer loses Referrer when redirecting or linking with JavaScript

I came across another Internet Explorer feature today as I was debugging a piece of code related to adding referrer URLs when submitting input forms. It worked perfectly on all versions that I tried of Firefox and Chrome, the referring URL was there, but when it came to IE it just would not give me the address. As the failing incoming link was being syndicated …

Supplying EPiServer scheduled jobs with parameters through Admin Mode

I have always missed a way of supplying arbitrary input parameters to EPiServer scheduled jobs through the Admin Mode scheduled job interface. As Stefan Forsberg laughingly pointed out to me when I told him about my POC for this functionality (something in the lines of “Oh, I see you have found yourself a hammer.”), I seem to have found a way of using control adapters …

Allowing web editors to apply PageType based filtering on the EPiServer edit mode PageTree

When you have an EPiServer installation containing thousands of different pages built up by far-too-many page types, locating pages of just one of them may turn out to be just a little too time consuming. Since I have grown to like the adaptive control approach more and more lately, I decided to create a filtering mechanism for cleaning out dead ends in the EPiServer page …

Recursively finding an ASP.NET control with a specific ID

I wrote a short recursive method for locating specific controls while having no idea of where they are in a nested structure; actually, I added one dynamically and needed to find it again. This will return the first control matching the ID below the supplied root control, if it can find one of course. FindControlRecursively method Usage As Page is also a Control it may …

Making the EPiServer scheduler run your Windows PowerShell scripts

Some time ago I wrote a post about retrieving and updating the MaxMind GeoIP database using Windows PowerShell scripts, and suggested the possibility to have the Windows Task Scheduler automating the process. Mostly for my own amusement, I decided to have a go at making the EPiServer scheduler do the work as well; perhaps there would also be scenarios when web administrators would need to …

Surviving IE, or: How to render different markup depending on devices and browsers

The short answer would be, “Create a control adapter, add it to your .browser file and have it applied using browser recognition”. If you want the longer verion, you will have to continue reading. First, let us start with some basics on control adapters. I find them extremely useful tweeking built-in EPiServer (the CMS that I most often find myself working with) controls; especially adding …

Keeping your hair from turning gray, or: How to style the asp:FileUpload control using control adapters

The other day, I got a question from a former collegue of mine who was having trouble styling the ASP.NET FileUpload control, as it renders into a particulary nasty bit of HTML; i.e. an <input type=”file” /> tag. He told me that he would love for it to be just another textbox along with a stupid button. If you have ever tried applying any type …

GeoIP database update in multiple webserver environment using Windows PowerShell scripting

The MaxMind GeoIP database (shipped with EPiServer Framework) is rather useful when wanting to show geographically specific information to visitors as they surf around the site. Since mapping the correct requests to the proper regions may be rather important generating value, the need of having a fresh database copy quickly comes into focus. Manually updating the database is of course not at all complicated; it …

Using Windows Task Scheduler to automatically run PowerShell scripts

Windows PowerShell scripting is a powerful way of automating otherwise tiresome and error prone manual tasks. I recently looked into how I could have Windows running my scripts for me. It is not difficult, but it still took some poking around to get done. New tasks are added using the Create Task option in the Actions area. The General tab will let you decide how …

Programmatically created pages getting wrong master language in migrated EPiServer environment

I ran in to a problem with my migrated EPiServer 4 website when creating new pages programmatically. The old site was using English as the master language, but my new one would be all in Swedish. I had used the version of the Advanced Language Manipulation Tool that Mari Jørgensen updated to convert my pages, as well as the SQL provided by Dane Richards (comment …

Changing default values on built-in EPiServer properties

A client was using CurrentPage.Changed.ToShortDateString() for displaying a Last updated date in the inner footer of their pages. They often, however, forgot to select the Mark page as changed-checkbox on the Settings tab, and asked me if it was possible to have it selected by default. Here is a simple way to do it. Global.asax.cs In your Global.asax.cs file, add an event handler to the …