Mega Code Archive

 

Categories / C# Tutorial / Reflection

 

DefineDynamicAssembly method and AssemblyResolve event

using System; using System.Reflection; using System.Reflection.Emit; class Test {    public static void Main() {       AppDomain currentDomain = AppDomain.CurrentDomain;       currentDomain.AssemblyResolve += new ResolveEventHandler(MyResolveEventHandler);       InstantiateMyDynamicType(currentDomain);    }    static void InstantiateMyDynamicType(AppDomain domain) {       try {          domain.CreateInstance("Assembly text name, Version, Culture, PublicKeyToken", "MyDynamicType");       } catch (Exception e) {          Console.WriteLine(e.Message);       }    }       static Assembly MyResolveEventHandler(object sender, ResolveEventArgs args) {       AppDomain domain = (AppDomain) sender;       AssemblyName assemblyName = new AssemblyName();       assemblyName.Name = "MyDynamicAssembly";       AssemblyBuilder assemblyBuilder = domain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);       ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule("MyDynamicModule");       TypeBuilder typeBuilder = moduleBuilder.DefineType("MyDynamicType", TypeAttributes.Public);       ConstructorBuilder constructorBuilder = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, null);       ILGenerator ilGenerator = constructorBuilder.GetILGenerator();       ilGenerator.EmitWriteLine("MyDynamicType instantiated!");       ilGenerator.Emit(OpCodes.Ret);       typeBuilder.CreateType();       return assemblyBuilder;    } }