How to compile C# source code from a string?

Question

Hi,

How can I convert a string (e.g. loaded from a .txt file) into
an ingredient of the C# code?

e.g.: string = "Console.WriteLine("Welcome");"

How can I implenent this string into a method,
How to compile C# source code from this string?

Thanks,
Tom

Answer 1

Hi,

I think is not possible unless your string have complete C# code with Main method under a class.

After u have complete code, just compile it with

csc /out:Test.exe Test.cs

Answer 2

Check out this article

http://support.microsoft.com/kb/304655

 

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Miha Markic [MVP C#] http://blog.rthand.com

Answer 3

Hi,

It is possible with CSharpCodeProvider Class.

            CSharpCodeProvider provider = new CSharpCodeProvider();
            ICodeCompiler compiler = provider.CreateCompiler();
            CompilerParameters parameters = new CompilerParameters();
            parameters.GenerateExecutable = true;
            parameters.OutputAssembly = "bin.exe";
            string code = "using System; namespace HelloWorld { class Prog { static void Main(string[] args){Console.WriteLine(\"Hello World!\");Console.ReadLine();}}}";
            CompilerResults cr = compiler.CompileAssemblyFromSource(parameters, code);

            if (cr.Errors.Count > 0)
            {
                Console.WriteLine("Errors building into {0}",
                     cr.PathToAssembly);
                foreach (var ce in cr.Errors)
                {
                    Console.WriteLine("{0}", ce.ToString());
                    Console.WriteLine();
                }
            }
            else
            {
                Console.WriteLine("Source built into {0} successfully.",
                     cr.PathToAssembly);
                // Launch
                Process.Start("bin.exe");
            }

Regards,