Can not handle model binding validation errors for dynamic web API actions

[ShiningRush]

I'm find a problem that when dynamic webapi validating parameter, It can't find out the serialization errors.
Such as the client posted contents contain incorrect string "abcd" which will be serialized to a property with a int type.
Now, Application Layer that be called by dynamic webapi will get a defaut int value instead of throwing a AbpValidationException.

I finded out the code causing the problem as follow:

        public async Task<HttpResponseMessage> ExecuteActionFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func<Task<HttpResponseMessage>> continuation)
        {
            if (!_configuration.IsValidationEnabledForControllers)
            {
                return await continuation();
            }

            var methodInfo = actionContext.ActionDescriptor.GetMethodInfoOrNull();
            if (methodInfo == null)
            {
                return await continuation();
            }

// here, jump the webapi's validation caused the problem
            if (actionContext.ActionDescriptor.IsDynamicAbpAction())
            {
                return await continuation();
            }

            using (var validator = _iocResolver.ResolveAsDisposable<WebApiActionInvocationValidator>())
            {
                validator.Object.Initialize(actionContext, methodInfo);
                validator.Object.Validate();
            }

            return await continuation();
        }

Now what i can do is annotated the code,
But i worry about it could reduce performance(double validate).

And Even used webapi's validation can catch serialization errors but the returned errorMessage is empty, It also confused me.

There is any solution more better?

[hikalkan]

Let us check this.

[ShiningRush]

Thanks reply.
I wonder whether i should close the issue after it be asigned to problem or bug?

[hikalkan]

We will close this when it's resolved.
Thanks a lot.