Question

I am trying to build a web application to evaluate .Net code online (like http://ideone.com/)
I have managed to compile code with CodeDomProvider.
But I don’t know how to pass stdin parameters to this function.

If a user writes this code in the textarea of my web application:

using System;
public class Test  {

    static void Main()
    {
        String t = "";
        while (t != null){
           t = Console.ReadLine();
            Console.WriteLine(t+"OK");
        }
     }
}

I can Compile it with this code
CompilerInfo[] allCompilerInfo = CodeDomProvider.GetAllCompilerInfo();

  //Tell the compiler what language was used
  CodeDomProvider CodeProvider = CodeDomProvider.CreateProvider("C#");

  //Set up our compiler options...
  CompilerParameters CompilerOptions = new CompilerParameters();
  var _with1 = CompilerOptions;
   _with1.ReferencedAssemblies.Add("System.dll");
  _with1.GenerateInMemory = true;
  _with1.TreatWarningsAsErrors = true;

  //Compile the code that is to be evaluated
  CompilerResults Results = CodeProvider.CompileAssemblyFromSource(CompilerOptions, strCode);

Now I would like to manage generic parameters:

If I pass a sample parameter like this:

53

12

09

I would like the result of the compilation:

53OK

12OK

09OK

Do you know how to do this?

Answer 1

As I interpret the question, you are asking how to run and pass stdin command line data to an application that was compiled on your web server from code that a user typed into a text box. Avoiding the serious security concerns of doing such, what you want to do is launch the application using the System.Diagnostics.Process class, and specify RedirectStandardInput in the StartInfo property. Start by reading the MSDN docs on the Process class: http://msdn.microsoft.com/en-us/library/system.diagnostics.process.aspx