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JavaScript MVC 1.3 - Views/Templates with knockoutJS and AngularJS

This is part 3 of my short series about JavaScript MVC Frameworks. It will show you some examples of templates with MVC-Frameworks, which basically contain the HTML and placeholders where the data is added. If you haven't already read part 1 & 2, I would highly recommend it.

Let's just get started!



I like going directly for real-life examples and then filling in some theory as we go along. So I will start with some real templates, and then explain how they work. To do this, I will be using 5 different templating methods - tokens, razor, jQuery, knockoutJS and AngularJS.


The resulting output for the end user will look like this:

...and will look like this for the editing user, with hovering edit-buttons:


You can see a live demo of the solution here.

Install this tutorial to experiment on your own

I've packaged this entire lesson as a DNN App so that you can experience it directly on your system. Just install 2sxc as instructed here and download the JS-API/JSON-App from here.


Let's begin with the Token template

As you can see, it's very simple and trivial. A few placeholders [Content:Question] and [Content.Answer], a <repeat> section + some header placeholders [ListContent:Title= and [ListContent:Content]


This is the Razor Template

As you all know, the Razor-version is plain HTML with @Variable placeholders. And of course I can add more complex logic as c# code wherever I want to - which is very powerful, but requires server rendering. This is great for SEO-optimized HTML.


A basic jQuery Template

...and the required code to bind it:

The code above basically manually assembles a string and inserts it into the DIV. Not exciting, but good to understand. You shouldn't do it like this though :).


A basic knockoutJS Template

As you can see - it looks very, very simple. It's also easy to understand. What's missing here is the binding code, connecting the JSON-data to the template it looks as follows:


The way this works is part of one of the next blogs - I just included it for completeness.


The same basic AngularJS template

This is the same template when using AngularJS. Again it's very simple to use and read - just the syntax is a bit different.

Below is the binding code. It's a bit more complex than knockoutJS - but for very good reasons that I'll explain in the future: 

This will be explained more in detail - again just included for completeness.


The Binding-Code

As you are probably aware, the Tokens and Razor bindings happen automatically, because 2sxc does it for you. So the binding-mechanisms are very generic and trivial; using knockoutJS and AngularJS will require a bit more work. But it's mostly copy-paste from one project to the other - so the overhead is minimal. But you will be awarded with a slick, fast UI that's infinitely adaptable :).


Try it yourself!

Go ahead, download the app, have fun.


Summing it up

You have many options - but they are all reasonably easy when doing simple stuff, and all get more complex when you need more features. In reality, AngularJS needs a bit a bit more complex, but scales much, much better. And the complexity has good reasons - like security (the $sce in the code). We'll learn more about that in the future.

With love from Switzerland,

Daniel Mettler grew up in the jungles of Indonesia and is founder and CEO of 2sic internet solutions in Switzerland and Liechtenstein, an 20-head web specialist with over 600 DNN projects since 1999. He is also chief architect of 2sxc (2SexyContent - see forge), an open source module for creating attractive content and DNN Apps.




again, great work Daniel. You are really helping to modernize the module development process. Keep it coming!
Jordan Tuesday, November 11, 2014 6:28 PM (link)
Syed Nabeel
Nice blog, I was looking for knockoutJS related info.
Syed Nabeel Friday, January 09, 2015 4:28 PM (link)

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