The task-based help assumes that you are familiar with programming in Visual Studio. By following the steps outlined in the help, you will be able to create projects demonstrating a variety of Reports for WinForms previewing features and get a good sense of what Reports for WinForms can do. If you've never used Reports for WinForms before, you may want to work through the C1PrintDocument Quick Start first to familiarize yourself with the product.
For task-based help topic create a new .NET project and place a C1PrintDocument and a C1PrintPreview component on the form and set C1PrintPreviewControl1's Document property to C1PrintDocument1. Also, you should have the following namespaces referenced to your project: