threading error

Question

1.00/5 (1 vote)

See more:

ActiveX control 'd27cdb6e-ae6d-11cf-96b8-444553540000' cannot be instantiated because the current thread is not in a single-threaded apartment.

how can i solve this
i add two forms when i click the form 1 button i want open the form2 in form2 i added axShockwaveFlash1 when i run the form2 that time i am getting the this error

Posted 8-Nov-10 23:05pm

sampath55

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

E.F. Nijboer · Answer 1 · 2010-11-08T23:26:00

The problem you're running into is that most background thread / worker APIs will create the thread in a Multithreaded Apartment state. The error message indicates that the control requires the thread be a Single Threaded Apartment.

You can work around this by creating a thread yourself and specifying the STA apartment state on the thread.

From this link:
http://stackoverflow.com/questions/1418466/single-threaded-apartment-cannot-instantiate-activex-control[^]

var t = new Thread(MyThreadStartMethod);
t.SetApartmentState(ApartmentState.MTA);
t.Start();

Good luck!