动态编译源码

  private void btnLoad_Click(object sender, System.EventArgs e)
  {
   this.rtfCode.Text = "using System;" + System.Environment.NewLine;
   this.rtfCode.Text += "using System.Collections;" + System.Environment.NewLine;
   this.rtfCode.Text += "using System.Xml;" + System.Environment.NewLine;
   this.rtfCode.Text += "using System.IO;" + System.Environment.NewLine;
   this.rtfCode.Text += "using System.Windows.Forms;" + System.Environment.NewLine;
   this.rtfCode.Text += System.Environment.NewLine;
   this.rtfCode.Text += "namespace CSharpScripter" + System.Environment.NewLine;
   this.rtfCode.Text += "{" + System.Environment.NewLine;
   this.rtfCode.Text += " public class TestClass : CSharpScripter.Command" + System.Environment.NewLine;
   this.rtfCode.Text += " {" + System.Environment.NewLine;
   this.rtfCode.Text += "  public TestClass()" + System.Environment.NewLine;
   this.rtfCode.Text += "  {" + System.Environment.NewLine;
   this.rtfCode.Text += "  }" + System.Environment.NewLine;
   this.rtfCode.Text += System.Environment.NewLine;
   this.rtfCode.Text += "  public void Execute() " + System.Environment.NewLine;
   this.rtfCode.Text += "  {" + System.Environment.NewLine;
   this.rtfCode.Text += "   MessageBox.Show(\"This is a testmessage\");" + System.Environment.NewLine;
   this.rtfCode.Text += "  }" + System.Environment.NewLine;
   this.rtfCode.Text += " }" + System.Environment.NewLine;
   this.rtfCode.Text += "}" + System.Environment.NewLine;
  }

  private void btnCompile_Click(object sender, System.EventArgs e)
  {
   CSharpCodeProvider csp = new CSharpCodeProvider();
   ICodeCompiler cc = csp.CreateCompiler();
   CompilerParameters cp = new CompilerParameters();

   cp.OutputAssembly = Application.StartupPath + "\\TestClass.dll";
   cp.ReferencedAssemblies.Add("System.dll");
   cp.ReferencedAssemblies.Add("System.dll");
   cp.ReferencedAssemblies.Add("System.Data.dll");
   cp.ReferencedAssemblies.Add("System.Xml.dll");
   cp.ReferencedAssemblies.Add("mscorlib.dll");
   cp.ReferencedAssemblies.Add("System.Windows.Forms.dll");
   cp.ReferencedAssemblies.Add("CSharpScripter.exe");
      
   cp.WarningLevel = 3;

   cp.CompilerOptions = "/target:library /optimize";
   cp.GenerateExecutable = false;
   cp.GenerateInMemory = false;

   System.CodeDom.Compiler.TempFileCollection tfc = new TempFileCollection(Application.StartupPath, false);
   CompilerResults cr  = new CompilerResults(tfc);

   cr = cc.CompileAssemblyFromSource(cp, this.rtfCode.Text);

   if (cr.Errors.Count > 0)
   {
    foreach (CompilerError ce in cr.Errors)
    {
     Console.WriteLine(ce.ErrorNumber + ": " + ce.ErrorText);
    }
    MessageBox.Show(this, "Errors occoured", "Errors", MessageBoxButtons.OK, MessageBoxIcon.Error);
    this.btnExecute.Enabled = false;
   }
   else
   {
    this.btnExecute.Enabled = true;
   }
   
   System.Collections.Specialized.StringCollection sc = cr.Output;
   foreach (string s in sc)
   {
    Console.WriteLine(s);
   }
  }

  private void CheckErrors(CompilerErrorCollection cec)
  {

  }

  private void btnExecute_Click(object sender, System.EventArgs e)
  {
   AppDomainSetup ads = new AppDomainSetup();
   ads.ShadowCopyFiles = "true";
   AppDomain.CurrentDomain.SetShadowCopyFiles();

   AppDomain newDomain = AppDomain.CreateDomain("newDomain");
     
   byte[] rawAssembly = loadFile("TestClass.dll");
   Assembly assembly = newDomain.Load(rawAssembly, null);

   Command testClass = (Command)assembly.CreateInstance("CSharpScripter.TestClass");
   testClass.Execute();

   testClass = null;
   assembly = null;

   AppDomain.Unload(newDomain);
   newDomain = null;
  }

  private byte[] loadFile(string filename)
  {
   FileStream fs = new FileStream(filename, FileMode.Open);
   byte[] buffer = new byte[(int) fs.Length];
   fs.Read(buffer, 0, buffer.Length);
   fs.Close();
   fs = null;
   return buffer;
  }

//看完觉得可以用这些代码做很多有用的事情，不知道整个应用程序能不能这样加栽