Download the source code of the example
Last week we released our first beta of the Telerik Windows Phone 7 control toolkit. One of the new controls there is RadJumpList. It is a fundamental control for building data driven WP7 applications. We invested a lot into our data engine story - we have our own internal CollectionViewSource implementation which allows you to sort, filter and group your data with a single line of code (more on the data engine in this in-depth blog post).
Apart from the data engine we also built a high performance ListBox control. RadDataBoundListBox is a virtualized ListBox control which has two major features:
Now back to RadJumpList. It inherits from RadDataBoundListBox and is adding the group/sort and filter support which is coming from the data engine. Here is how the class diagram looks like:
The important properties here are the Sort/Filter/GroupDescriptors - by using them you are able to control how the data is visualized. In the most common and simple scenario you need to write the following code:
<!-- Group by Genre -->
<!-- Sort by Title -->
The code above will display the following Grouped and Sorted list of items:
Thats it - now you have your grouped and sorted list of items - with just a couple of lines of code. In the next part of the article I will explain how to dynamical change the sort/filter and group. Download the source code of the example and let us know if you have any feedback on that.
Part 2 of the series is now available - read it here.
Valentin Stoychev (@ValioStoychev) for long has been part of Telerik and worked on almost every UI suite that came out of Telerik. Valio now works as a Product Manager and strives to make every customer a successful customer.
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