Passing a string through a BackgroundWorker's RunWorkerAsync

I have a Bacground Worker where it needs a string. I have put the string in the RunWorkerAsync function but when I try to cast the sender variable back to a string with the following line..

Calling method:

String^ arg=this->GenerateArg();
MessageBox::Show(arg);
this->threadPleaseWait->RunWorkerAsync(arg);

casting Method

String args = dynamic_cast<String^>(sender);

arg is a String^, I get what I expect in the message box but when casting the 'args' value is null
gilllyoAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

AlexFMCommented:
You must extract argument from DoWorkEventArgs^ e parameter, I guess it should be:

String^ args = dynamic_cast<String^>(e->Argument);

See: DoWorkEventArgs.Argument Property
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ChokeholdCommented:
HAve you tried to use safe_cast instead ?
0
AlexFMCommented:
BTW, sender is BackgroundWorker itself. You need to cast it to BackgroundWorker and use inside of DoWork function.
0
gilllyoAuthor Commented:
Thanks

I have fixed that up...
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual C++.NET

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.