CodeDOM

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Permet de générer du code au runtime.

Csharp.svg
// création de l'arborescence: CodeCompileUnit, Namespace, Classe, Méthode
CodeCompileUnit compileUnit = new CodeCompileUnit();
CodeNamespace myNamespace = new CodeNamespace("MyNamespace");
myNamespace.Imports.Add(new CodeNamespaceImport("System"));
CodeTypeDeclaration myClass = new CodeTypeDeclaration("MyClass");
CodeEntryPointMethod start = new CodeEntryPointMethod();
CodeMethodInvokeExpression cs1 = new CodeMethodInvokeExpression(
new CodeTypeReferenceExpression("Console"), "WriteLine", new CodePrimitiveExpression("Hello World!"));
compileUnit.Namespaces.Add(myNamespace);
myNamespace.Types.Add(myClass);
myClass.Members.Add(start);
start.Statements.Add(cs1);

// génération d'un fichier contenant le code au format C#
CSharpCodeProvider provider = new CSharpCodeProvider();
using (StreamWriter sw = new StreamWriter("HelloWorld.cs", false))
{
    IndentedTextWriter tw = new IndentedTextWriter(sw, " ");
    provider.GenerateCodeFromCompileUnit(compileUnit, tw, new CodeGeneratorOptions());
    tw.Close();
}
HelloWorld.cs
//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:4.0.30319.42000
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace MyNamespace {
    using System;
    
    
    public class MyClass {
        
        public static void Main() {
            Console.WriteLine("Hello World!");
        }
    }
}