I found myself with the task of creating a screen where users could arrange the order of certain items. Now instead of having a crude mechanism of numbering each item accordingly I decided to opt for a more interactive way to order. I chose to show the user a list of items where they could drag and drop each item based on the required order that they wanted to see.  

Here is a quick and brief guide to WPF data binding, hope it helps those new to WPF.

Most applications have some sort of internal data which they want to show in the UI for the user to view. So for example let's say we have a sales systems which holds data about its customers. So I would expect a customers class that would hold the details of each individual customer, and this would be mapped to the UI somehow so when the users wants to see information about a particular customer they can.

Styles provide a good way of providing a richer feel to your UI. They provide ways to change the look and feel of controls within the UI and establish UI behaviour such as changing the background colour based on some properties or bindings. You can create styles either in code or in xaml. Xaml is the conventional way and in this article I am going to concentrate mostly on how to define and use styles in xaml.

You can define your own drag-and-drop behavior in an application, defining the content to be dragged and the controls that the user drags the content from and to.  The basic process for drag-and-drop is:

• User presses and holds a mouse button (typically left mouse button) on a control that contains the data to be dragged (the source element)
• User moves mouse pointer over another control, where the data is to be dropped (the