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Asked: 2026-05-17T03:13:57+00:00

Hey everyone, I am trying to ( temporarily! ) do some ASP.NET and C#

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Hey everyone, I am trying to (temporarily!) do some ASP.NET and C# compiling on my iMac.

Haha, it’s so funny trying to do this on an iMac, it feels so.. wrong!

Anyway, I’ve found that Mono is the best way to do this, in my opinion.

I have a simple ASP.NET page with the following code:

1  <%@ Page Language="C#" %>    
2  <html>    
3  <head>    
4  <title>Planting Trees</title>    
5  <script runat="server">    
6    protected void Page_Load(Object Source, EventArgs E)    
7    {    
8      string msg = "Let's plant some trees!<br/>";    
9    
10     // Create a new Tree    
11     Tree tree1 = new Tree();    
12    
13     msg += "I've created a tree with a height of " +    
14       tree1.height + " metre(s).<br/>";    
15    
16     tree1.Grow();    
17    
18     msg += "After a bit of growth, it's now up to " +    
19       tree1.height + " metre(s) tall.<br/>";    
20    
21     Tree tree2 = new Tree();    
22     Tree tree3 = new Tree();    
23     tree2.Grow();    
24     tree3.Grow();    
25     tree2.Grow();    
26     tree3.Grow();    
27     tree2.Grow();    
28     msg += "Here are the final heights:<br/>";    
29     msg += " tree1: " + tree1.height + "m<br/>";    
30     msg += " tree2: " + tree2.height + "m<br/>";    
31     msg += " tree3: " + tree3.height + "m<br/>";    
32    
33     Output.Text = msg;    
34   }    
35 </script>    
36 </head>    
37 <body>    
38 <p><asp:label runat="server" id="Output" /></p>    
39 </body>    
40 </html>

Now, I have this simple C# class to go along with it:

// Tree.cs, A simple C# class

public class Tree {

  public int height = 0;

  public void Grow() {
    height += 1;
  }
}

Now, the ASP.NET page is located in my home directory on my iMac and the .cs C# class file is located under bin in the home directory.

Now, I’m not 100% sure, but do I need to compile the .cs into a .dll for this to work?

Any suggestions are greatly appreciated!

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1 Answer

  1. Editorial Team

    You’ll need to setup mod_mono so you actually have an application server to serve up pages.

    That said, you’re right that you need to compile your .CS into a .NET assembly (DLL).

    I can only speak from the Windows world, but I assume the mono world is much the same. You can’t just compile your class and have it run – an ASP.NET web application expects a few things (like global.asax and web.config) so it knows how your pages should be served up.

    I’m not sure what IDE you’re using, but your best bet might be to download a simple Mono sample ASP.NET application and try to stuff in your own code. All the configuration and lifecycle features can be daunting at first and quite honestly you should forget they even exist while you’re still just playing around with pages and codebehind.

    Alternately you could try going through this CodeProject: http://www.codeproject.com/KB/cross-platform/introtomono2.aspx

    It’s quite out of date but the principles remain the same.

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