trying to compile and execute C# code programmatically

Question

The following is my code :

using System;
using System.Collections.Generic;
using System.Text;

using System.CodeDom.Compiler;
using System.IO;
using Microsof         


        

Answer 1

you dont need to split your code into an array like that.

the array is for passing multiple source files.

Answer 2

you can try to make code like this

                string content = File.ReadAllText(@Path.GetDirectoryName(Application.ExecutablePath) + "\\r.cs");

                char[] seperators = { '\n', '\r', '\t' };
                string[] code = content.Split(seperators);

                CompilerParameters CompilerParams = new CompilerParameters();
                string outputDirectory = Directory.GetCurrentDirectory();

                CompilerParams.GenerateInMemory = true;
                CompilerParams.TreatWarningsAsErrors = false;
                CompilerParams.GenerateExecutable = false;
                CompilerParams.CompilerOptions = "/optimize";
                CompilerParams.GenerateExecutable = false;
                CompilerParams.OutputAssembly = "r.dll";
                FileStream fileStream = File.Open(Path.GetDirectoryName(Application.ExecutablePath) + "\\Output\\r.dll",FileMode.Open);
                string references =  fileStream.Name;




                CompilerParams.ReferencedAssemblies.Add(references);
                fileStream.Close();
                CSharpCodeProvider provider = new CSharpCodeProvider();
                CompilerResults compile = provider.CompileAssemblyFromFile(CompilerParams, Path.GetDirectoryName(Application.ExecutablePath) + "\\r.cs");

                if (compile.Errors.HasErrors)
                {
                    string text = "Compile error: ";
                    foreach (CompilerError ce in compile.Errors)
                    {
                        text += "rn" + ce.ToString();
                    }
                    throw new Exception(text);
                }

                Module module = compile.CompiledAssembly.GetModules()[0];
                Type mt = null;
                MethodInfo methInfo = null;
                MemberInfo[] memberInfo;
                //var dll = Assembly.LoadFile(references);

                if (module != null)
                {
                    mt = module.GetType("materialclassifier.ClassifierFiles");
                }

                if (mt != null)
                {
                    memberInfo = mt.GetMembers();
                    methInfo = mt.GetMethod("main");
                }

                if (methInfo != null)
                {
                    Console.WriteLine(methInfo.Invoke(null, new object[] { "here in dyna code" }));

                }

and it is working without any error in my code

Answer 3

I believe this is the problem:

string content = File.ReadAllText(@"D:\hi.cs");
string[] code = new string[content.Length];
char[] seperators = { '\n','\r','\t' };
code = content.Split(seperators);

The idea (I believe) is that CompileAssemblyFromSource doesn't take individual lines - each string in the array is meant to be a complete C# source file. So you probably just need:

string[] code = new[] { File.ReadAllText(@"D:\hi.cs") };

Note that even if your first block were doing the right thing, you'd still have been creating a string array for no reason - it would have been simpler to write it as:

string content = File.ReadAllText(@"D:\hi.cs");
char[] seperators = { '\n','\r','\t' };
string[] code = content.Split(seperators);