Don't worry. Not everyone knows it...

Here I am going to briefly introduce with the types of custom controls one can build in WPF. Someone can ask why we need custom controls, if we can do everything with Styles and Control Templates ??? Well, I would say still there are scenarios where one may need custom controls. One of them can be, while creating reusable control which is composed of many other controls, i.e: I want to create a control for data entry purpose, which will take Temporary address and Permanent Address. Here I don’t want to copy/paste XAML code repeatedly for these two addresses. So, it’s better to create a one User Control and reuse it. Another scenario can be, when we need a functionality which is not provided by existing WPF controls, here custom control can be the best solution. UserControl vs Control Now before proceeding further, it is important to have a look at the two most common classes of WPF namely UserControl and Control . UserControl should be chosen when you want to combine ex...