How to execute .cs File code in visual studio

protected void btnexecute_Click(object sender, EventArgs e)
{
    string pathToCs = Server.MapPath("~/App_Code/Function/Functions/" +  
                                     txtfunmoduleName.Text + ".cs"));
    
    ExecuteCode(pathToCs);
}

private void ExecuteCode(string PathToCSFile)
{
    string CodeSource = System.IO.File.ReadAllText(PathToCSFile);
    string exePath = System.IO.Path.ChangeExtension(PathToCSFile, ".exe");
    string assemblypath = GenerateCSharpAssembly(CodeSource, exePath);
    if (System.IO.File.Exists(assemblypath))
    {
        
        ProcessStartInfo procInfo = new ProcessStartInfo();
        procInfo.UseShellExecute = false;
        procInfo.WindowStyle = ProcessWindowStyle.Normal;
        procInfo.CreateNoWindow = false;
        procInfo.FileName = assemblypath;
        procInfo.RedirectStandardOutput = true;
        try
	{
	    // Start the process with the info we specified.
	    // Call WaitForExit and then the using statement will close.
	    using (Process exeProcess = Process.Start(procInfo))
	    {
		exeProcess.WaitForExit();
                string msg = exeProcess.StandardOutput.ReadToEnd();
                Response.Write(msg);
	    }
	}
	catch
	{
	    // Log error.
	}
        
    }

}

private string GenerateCSharpAssembly(string CodeSource, string exePath)
{
   
    CSharpCodeProvider provider = new CSharpCodeProvider();

    // add compiler parameters
    CompilerParameters compilerParams = new CompilerParameters();
    compilerParams.CompilerOptions = "/target:exe /platform:x86 /optimize";
    compilerParams.GenerateExecutable = true;
    compilerParams.GenerateInMemory = false;

    compilerParams.OutputAssembly = exePath;
    compilerParams.IncludeDebugInformation = false;
    compilerParams.ReferencedAssemblies.Add("mscorlib.dll");
    compilerParams.ReferencedAssemblies.Add("System.dll");
    // Invoke compilation.
    CompilerResults cr = provider.CompileAssemblyFromSource(compilerParams, CodeSource);

    if (cr.Errors.Count > 0)
    {
        // Display compilation errors.

        string message = "";
        foreach (CompilerError ce in cr.Errors)
        {
            message += ce.ToString();
        }
      Response.Write(message); 
     return "";
    }
    else
    {
        return exePath;
    }
}