Comments on: How To Update Controls Using BackgroundWorker in VB.NET

By: Eric

Eric — Wed, 23 Dec 2009 16:07:24 +0000

Excellent. This is exaclty what I was looking for to smooth out some of my applications.

By: Paul B

Paul B — Sun, 27 Sep 2009 10:16:28 +0000

Hi, I am a bit of a beginner when it comes to threads, but this article has helped me. Thank you.

What I need to know now is how do I pass values to the backround worker.

eg. In the original artical I would like the user to be able to set the start and end values of the loop.

By: Tony

Tony — Mon, 22 Jun 2009 16:57:24 +0000

Thanks for the great beginners article on BackgroundWorkers! Very insightful.

By: Mark-C

Mark-C — Tue, 09 Jun 2009 19:00:44 +0000

Hi, thanks, I wish I hhad found this sooner !
Many comments seem to share my problem of sharing data between forms and threads.
I have found that using variables (structures) declared at module level helps. Is this bad practice or a reasonable solution?
Cheers

By: Bart

Bart — Mon, 23 Feb 2009 13:04:32 +0000

Hi again,
I already found out what went wrong. It was a faulty value assignment to the To variable in the For…To loop. Pretty stupid…

But this is a great tutorial, it really helped me show the way!

Thanks,
Bart

By: Bart

Bart — Sat, 21 Feb 2009 21:08:46 +0000

Hi,
I tried to use your example but somehow it doesn’t work. After TestWorker.RunWorkerAsync(), in stead of going to Private Sub TestWorker_DoWork, my program directly goes to: Private Sub TestWorker_RunWorkerCompleted, bypassing the important part of the code this way.
I wrote the code in the form and then tried to place the backgroundworker control on the form, but I couldn’t rename it to the name used in the code, as it already existed. Could this have anything to do with this and should I create the object on the form first and only then write the code?

I’m using VS2008 Express.

Any suggestions?

Bart

By: confused with threads - in order to refresh progressbar - Visual Basic .NET Forums

Tue, 17 Feb 2009 18:22:13 +0000

[...] How To Update Controls Using BackgroundWorker in VB.NET This article was insightful and simple to follow when I was learning about the BackgroundWorker. [...]

By: Bea

Bea — Wed, 21 Jan 2009 18:42:13 +0000

I’m trying to get my toolstripprogressbar to run at the same time my SQLDataReader and Datagridview is loading. The toolstripprogressbar runs after the datagridview loads. I’ve followed your example, also tried building a seperate thread with invokes and callbacks. The progressbar just does not seem to want to run while the datagridview is loading(which takes some time). Can I send my code to you? Thanks.

By: BJ452

BJ452 — Wed, 24 Dec 2008 09:43:49 +0000

As a neby I have been searhing for a simple, easy to understand demonstration of multithreadng and found this to be the most useful - Mnay examples only show snippets - and assume you know where to put them. what to import etc. Nice job - I will look out for more articles by you - thanks

By: ALegaspi

ALegaspi — Fri, 14 Nov 2008 16:59:41 +0000

THank you for this article… this gives me idea how to use the BW.

But I have a question. I have a situation that I think but Im not sure backgroundworker will help solve this problem. I have a form that contains all th details of our product and wthin this form I have a button that when you click it will popup another form let say sub form for the user to select a product. within this sub form I have to button “select” and “Add” button. When I click select it will add my selections let say on a collection to hold the data. and Add button will works to add another selection. What I want is to update the main form that contains the details of what I select from sub form. Right now on how it works, the details or data will only be displayed on the main form after clicking the ok button. What I want is updating the mainform to show my selections everytime i click select or add button. Do you think backgroundworker will help me on this? fi not do you have any suggestions of what is better to do on this? thanks it will really helps me a lot when I solve this problem.