How to call C# from JScript.net?

Question

I read that, for the newest Java, Javascript on Java can call or import java packages easily. In the newest .NET, can JScript.net call C# functions easily?

For details, I am asking not about compiled JScript.net code, but about non-compiled JScript.net string code which is run on the script engine.

@MicahArmantrout: msdn.microsoft.com/en-us/library/xkx7dfw1.aspx — Robert Harvey
– Robert Harvey, Commented Feb 27, 2012 at 19:55
Are you trying to do this new JScriptCodeProvider().CreateCompiler(); as stated here: odetocode.com/code/80.aspx — Dmitry Savy
– Dmitry Savy, Commented Feb 27, 2012 at 20:36
@COLDTOLD Yes,because I do not like writing similar functions in javascript again. — seven_swodniw
– seven_swodniw, Commented Feb 28, 2012 at 4:50

Dmitry Savy · Accepted Answer · 2012-02-27 20:02:22Z

9

Here is an example:

1) CS file with a simple calls and method that returns a string. 2) js file that calls the CS method using eval.

// cstest.cs - compile as library

using System;
namespace MyNamespace
{
    public class Foo
    {
        public string Bar()
        {
            return "Hello JS";
        }
    }
}

// test.js - compile as exe // add a reference to cstest.dll // command line compile jsc /t:exe /r:cstest.dll test.js

import MyNamespace;

var o : JSApp = new JSApp();
o.DoEval();

class JSApp
{
    function DoEval()
    {
        var f : Foo;
        var s : String
       eval("f = new Foo;");
       eval("s = f.Bar();"); // call Foo.Bar
       print(s);
    }
};

answered Feb 27, 2012 at 20:02

Dmitry Savy

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Comments

Emmanuel N · Accepted Answer · 2012-02-27 20:08:29Z

0

What you need to to is to convert your JScript.NET code to C#. Something like this.

edited Feb 27, 2012 at 20:08

answered Feb 27, 2012 at 19:59

Emmanuel N

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1 Comment

Robert Harvey Over a year ago

There is a new version of JScript.NET in Visual Studio 2010: msdn.microsoft.com/en-us/library/xkx7dfw1.aspx. I'm guessing there's a way to call C# code from JScript.NET, provided you compile your C# code into a .NET DLL and reference it from JScript.NET.

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