Add a control that allows you to define a number of steps. Each step should be displayed with some kind of visual (like an ellipse for example) and each visual should be connected with a line. The line could be animated to look like a progress bar.

This kind of visualization is found in the Multi-Step Form feature of Kendo UI for Angular.

In the meantime, you can achieve this effect by implementing a custom control as shown in the First Look demo of RadButtons.