Emacs csharp (C#) Mode Installation and Automatic Enable with Auto Hook on Windows

I like the editor in Visual Studio but when it comes to do some repetitious editing, for example, writing code to insert or update database fields based on some pattern, it is a lot easier to do cut-paste-search-replace with Emacs than the GUI based editor by recording some macros.

So I do often use Emacs. And now we have the csharp mode available, the environment is quite nice.

I am not an Elsip hacker so by the time I need to do something more internal with Emacs, I usually forgotten what I did the last time. So in order to save my own time in the future, for example, to duplicate what I have done on my home PC with another one somewhere, this article will help me do this. Perhaps you also may want to do the same thing.

• Be sure that your emacs is installed at your C:\Program Files\ directory, for example, C:\Program Files\emacs.23.2 Unless you know a whole lot more about Emacs (in which case you should not be reading this), it is not correct to install it anywhere else, because the load-path really only points to that directory.
• First, download the csharp mode Lisp code. You can Google for it as to where. But I got one from the Emacs Wiki under csharp-mode.el  Clicking this link will give you the content of the Elisp, so I would copy this into a suitable text editor (for some reasons, I tend to use Notepad for this sort of things.) then Save As csharp-mode.el
• Copy csharp-mode.el to site-lisp directory in your emacs installation. If the directory does not exist, I'd say it's OK to make one there.
• Next, go to your Windows user home directory (at very top, above Documents), then create a .emacs file. The easiest way to do this by far is to create one from Emacs. Notepad does not allow creating files that start with a period. Just Control-X F and type in ~/.emacs   NOTE: On Windows 7, your home directory for .emacs is usually c:\Users\/AppData\Roaming\  If you used emacs to edit this, emacs will know this.
• Now cut and past the following lines of Elisp. I have added a bonus hook to enable HTML editing mode for aspx and ascx below. Save the file, re-launch emacs and you are good to go.

(autoload 'csharp-mode "csharp-mode" "C# Mode" t)

(setq auto-mode-alist (append '(("\\.cs$" . csharp-mode))

auto-mode-alist))

(setq auto-mode-alist (append '(("\\.aspx$" . html-mode))

auto-mode-alist))

(setq auto-mode-alist (append '(("\\.ascx$" . html-mode))

auto-mode-alist))