It is about time for me to write something about Kendo UI. At first I was very skeptical about this framework. I am not trying to tell Kendo UI is not good, truth is far from it. It was a fear that people don’t want to read a review of commercially available framework when there are numerous free of charge. If this is a deterrent in any way then skip this article. Kendo UI may be the best HTML5 framework in existence but it will not be useful unless there is willingness to pay few hundred dollars (per developer … per server side technology).
Kendo UI consists of few components. First one is web component which provides you with a simple and consistent programming interface, polished and innovative UI widgets for the web, powered by jQuery
, a MVVM framework
, themes and template support. This is also an only open source part of framework.
Second component is a mobile app development framework which will be used for this article examples, mainly because good mobile performance separates good HTML5 frameworks from average ones.
Third one is a data visualizations component powered by HTML5. It can be used to create charts and dashboards which is usually only possible in desktop environment. Last but not least component is server side wrappers. With the server-side Kendo UI wrappers, .NET
Why Kendo UI
Kendo UI supports every major desktop and mobile browser including IE7 which is pretty impressive. From a mobile perspective, WinPhone8, iOS, Android and Blackberry platforms are supported. Unlike jQuery Mobile Kendo UI widgets match the theming and functionality behavior of native controls available for iOS
development, including buttons, navigation, and lists. There’s another great thing, if you want to create a hybrid mobile app you only need to do it once, Phonegap is here to wrap our app into a native package, just like with jQuery Mobile.
- Support for major desktop and mobile browsers, not just web-kit browsers. Not to mention support for major mobile platforms
- Code is optimized for major mobile platforms. Android app will use optimizations made from android platform, same thing goes for iOS and rest of them.
UI and visual impression
UI looks stunning, it is not the best looking HTML5 framework I ever so but it pretty close. High CSS3 usage is pretty obvious, box-shadows and gradients are used everywhere. For some reason overall app performance don’t suffer because of it. This is relatively important because jQuery Mobile 1.4 abandon a lot of its CSS in hope it will improve overall app performance, not to mention CSS3 background gradient is known performance killer (on mobile devices).
There’s one more thing that left a great impression on me, unlike jQuery Mobile, Kendo UI mobile app will behave / look differently depending on a platform. This is a big step over a jQuery Mobile UI, whose theme feels like iOS UI, which is relatively OK on iOS but, at least for me, fails on Android. It can go even further if different layouts are used on different platforms which can be easily turned on through simple HTML usage (example can be found in an example below).
Widgets in both jQuery UI and Kendo UI support themes and styling via CSS. Both frameworks also provide a number of themes out-of-the-box along with a means of creating custom themes. Widgets and themes are customizable, it can be done manually or through provided visual tools
Link to the jsFiddle example: http://jsfiddle.net/Gajotres/LGwM7/
As you can see in a example below mobile UI renders by default as a iOS on desktop browsers, if you view it from an Android browser it will have android look and feel.
Unfortunately jsFiddle and Kendo UI don’t work together correctly when viewed from mobile devices so take a look here: http://example.gajotres.net/kendoui/index.html
. You will see 2 completely different applications depending on iOS or Android device.
- Native look depending on platform and platform version. For example app will look different when watched on different iOS versions.
- App performance don’t suffer from heavy CSS3 usage.
Availability, ease of use
- Page layout system similar to jQuery Mobile
- MVVM usage
This is the first point in this article where I am obligated to criticize Kendo UI framework. Official documentation is, simply put it, bad, specially compared to jQuery Mobile or Sencha Touch. There are plenty of written examples but to few working examples or images. My biggest concern is who ever wrote this documentation didn’t think to use friking framework described to show how everything looks like.
A lot of small things are missing or described in sections where they shouldn’t be. What makes a good documentation is time spent reading official documentation over searching Google and I need to confess I spent to much time goggling for a help.
- Excellent demos, you will probably learn more from them then from an official documentation.
- Easy framework even with a bad documentation
- Online community is supportive
- Bad documentation
- Missing descriptions
- Kendo UI was not used to show how examples look like.
- Too few images, I want to see what some part of code can do. They don’t even need to use images.
Building Mobile Applications Using Kendo UI Mobile and ASP.NET Web API
Do not be discouraged by the title of this book, only one chapter (Chapter 3) is really dedicated to ASP.NET, rest of the book is dedicated to Kendo UI alone, making it also usable to JAVA and PHP developers. It is intended for beguines and expert developers alike. Book covers everything from API, widgets up to working example in form of Movie Ticket Application.
Instant Kendo UI Mobile
Unlike the previous one this book is dedicated only to Kendo UI Mobile library and its various components for building mobile applications effectively. It is rather short (compared to the previous one). Still it will cover everything you need to know about Kendo UI widgets and page building. One other thing, its price (6.29$) makes it also a bargain.
I can’t believe something like this was built on a jQuery foundation. But this should not surprise you or me, this is a commercial product and as such it must be faster and better then its open source brethren. It is fast and beautiful and I simply cant be objective here. This is everything I ever want from jQuery Mobile but couldn’t have with its simplicity and elegance and without its performance problems. I can go even further and place it back to beck with Sencha Touch.
Of course nothing is that perfect, while it is much faster and fluid then jQuery Mobile it is still lacking something jQuery Mobile does the best and it is documentation. You will probably find your self wondering through Google searching for something that rightfully should be mentioned in their official documentation. On the other hand community and developer support is great, and that is to be expected from not that cheap product.
In the end I urge jQuery Mobile developers to aspire to this framework.