In
my previous post, I have already defined how you can inherit from an existing control and define your own reusable chunk. The reusable XAML code that I have defined there is actually a composition of one of more existing elements in a common design surface. But sometimes you must define a new behaviour for your reusable component which does not belong to any of the already existing behaviors. Custom controls can help you in this. You can define a new behaviour for your Custom control which can have a default look and feel defined for it, and obviously which can be changed using Template for the user who is using the control. In this post I am going to provide you step by step approach on defining a Custom Control for your application.
Note: If you are really new to WPF, please read my WPF Tutorial before going further.
Steps to Create a new Custom Control
Creating a custom control is very simple. Just in your project right click and add a new Item. In the dialog box that appears, choose Custom Control template and Name it. I call it here as SimpleControl.
Once you have added the control, it adds up a new class to your project which inherits from Control. The Template also provides you with some initial help to define your own control. Lets remove all the comments for now and start building a control.
Download Sample Code
