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...

Today I'll try to write bit on TemplateBinding and how to use it inside a ControlTemplate . TemplateBinding is a type of binding used mainly for template scenarios. Here I am not going to write more on it's theoretical aspect as what is TemplateBinding, when to use, blah blah blah, as lot of content is readily available on net.  So, let's start quickly onto coding part: First of all, let's create a new project using WPF template and place a button in it as below: Now, what I am going to do is, I am going to replace this content template for this button. So, in order to do this, open up the Button tag and add Button.Template  markup tag with a new ControlTemplate as: Now as soon as you will add ControlTemplate tag, you will notice that the content of the button is gone and button is shown as a transparent rectangle. This is happened because here I told WPF to replace the default ControlTemplate with the one, which I defined. But at this point, our Co...