Professional IronPython

Creating the Simple C# Extension
 
❘
 
329
➤
➤
Protected Internal
members become public.
➤
➤
Private
members remain private and don’t appear at all to IronPython.
➤
➤
Internal
members become private and don’t appear at all to IronPython.
CREATINg THE SImPLE C# ExTENSIoN
The example in the following sections provides a simple set of calculations. Think of it as the 
basic four-function calculator with a bit extra added. The example doesn’t do anything fancy, but 
it does demonstrate techniques you need to build any C# extension for IronPython. The rest of 
the examples in this chapter build on this example, so you should at least scan the techniques pre-
sented in the sections that follow.
Creating the Project
A C# extension project in Visual Studio is nothing more than the typical class library. The following 
steps help you create the project for this example. You can use the same steps when working with 
the other examples — all you need to do is change the project name.
1.
Choose File
➤➤➪➤➤
New
➤➤➪➤➤
Project. You see the New Project dialog box shown in Figure 16-1.
fIgURE 16-1: 
Create a new project to hold your C# extension.
548592c16.indd 329
2/24/10 12:49:21 PM
www.finebook.ir

---

330
❘
CHAPTER 16
ExtEnding ironPython Using C#
2.
Choose the Visual C# folder in the Installed Templates list.
3.
Select .NET Framework 3.5 or an earlier version of the .NET Framework. Don’t select 
the .NET Framework 4.0 entry. The list of templates changes when you change the .NET 
Framework version.
4.
Select the Class Library template.