How to add themes namespace to C# project

Question

I'm relatively new in C#. I would like to use Microsoft ListBox control, but I recognized that there's no Vertical ScrollBar property. Then I found open source ListBox control on page: http://www.koders.com/csharp/fidF0FDB984AB0429D0E6DF5D90B0A30F850D0335DB.aspx And my question is where to find file oraz description of namespace "using System.Windows.Forms.Themes" ? Thanks a lot.

Answer 1

System.Windows.Forms.Themes是DotGNU Portable.NET的一部分。

Answer 2

You're looking at the ListBox class for dotGnu, an open-source re-implementation of the .Net framework.
As you've discovered, it won't work as-is on Microsoft's framework; that namespace was invented by dotGnu.