Here in this article I am explaining that how you can draw Polygon and handle its Mouse Down Event in WPF. WPF offers a lot of control in its different layers. In top layer it offers shape object. But sometimes we need to draw shapes and objects Dynamically. As in this example we are drawing Polygon and also showing the Polygons MouseDown Event. When you click the Polygon a MessageBox will display the message. The implementation only needs a StackPanel control and a series of namespaces related to graphics and shapes.