New Post: Debugging hangs if an event handler for a UI element is set and event handler gets executed (V8)

       private static Delegate CreateDelegate(Type delegateType, Action<object[]> target)
        {
            var sourceParameters = delegateType.GetMethod("Invoke").GetParameters();
            var parameters = sourceParameters.Select(p => Expression.Parameter(p.ParameterType, p.Name)).ToArray();
            var castParameters = parameters.Select(p => Expression.TypeAs(p, typeof(object))).ToArray();
            var createArray = Expression.NewArrayInit(typeof(object), castParameters);
            var invokeTarget = Expression.Invoke(Expression.Constant(target), createArray);
            var lambdaExpression = Expression.Lambda(delegateType, invokeTarget, parameters);
            return lambdaExpression.Compile();
        }

        private static Type delegateFactory = typeof(V8ScriptEngine).Assembly.GetType("Microsoft.ClearScript.DelegateFactory");
        private static MethodInfo createDelegateX = delegateFactory.GetMethod("CreateDelegate", new[] { typeof(ScriptEngine), typeof(object), typeof(Type) });

        public Delegate AddEventHandler(object obj, string eventName, object callback) {
            var eventInfo = obj.GetType().GetEvent(eventName);
            if (eventInfo != null)
            {
                // Create a delegate from the JavaScript callback function
                Delegate scriptHandler = (Delegate)createDelegateX.Invoke(null, new object[] { engine, callback, eventInfo.EventHandlerType });

                var handler = CreateDelegate(eventInfo.EventHandlerType, (object[] args) =>
                {
                    Debug.WriteLine("Event triggered: " + eventInfo.Name);
                    new Thread(() =>
                    {
                        scriptHandler.DynamicInvoke(args);
                    }).Start();
                });

                try
                {
                    eventInfo.AddEventHandler(obj, handler);
                }
                catch (Exception ex)
                {
                    Debug.WriteLine("AddEventHandler could not add event handler:" + ex.Message);
                    return null;
                }

                return handler;
            }
            return null;
        }

        public bool RemoveEventHandler(object obj, string eventName, Delegate handler)
        {
            var eventInfo = obj.GetType().GetEvent(eventName);
            if (eventInfo != null)
            {
                eventInfo.RemoveEventHandler(obj, handler);
                return true;
            }
            return false;
        }