Get up to 80 % extra points for free! More info
This week up to 80% off on Java courses. More info

Lesson 9 - Timer and BackgroundWorker in C# .NET

In the previous lesson, Handling Clicks at Coordinates in C# .NET, we completed the application that rendered geometric shapes on a PictureBox. In today's C# .NET tutorial we're going to learn how to use Timer and BackgroundWorker. We'll test both controls on illustrative examples.

Form Application Loop

If you remember our console tutorials, we simply put code in a loop if we wanted to repeat it. If we wanted to countdown 10 seconds, the console code would look like this:

for (int i = 10; i > 0; i--)

The result:

Console application

This isn't possible in Windows Forms. The above operation takes 10 seconds. When you run a similar long-running operation, the form thread is executing it and makes the entire form freeze. The application will stop responding, and after few seconds, Windows even offers to end it because it doesn't respond. This is because we've stopped the


...End of the preview...
Continue further

You will gain knowledge worth hundreds of thousands for a few crowns

You've come here and that's great! We believe that the first lessons showed you something new and useful
Do you want to continue the course? Go to the premium section.

Limited offer: Learn all knowledge and save money

Buy all currently available lessons with exercise submitting and other features for an exclusive price $4.59
Current account balance $0
By buying this exclusive package, you'll have access to all 18 lessons in this course including exercise submitting while saving $0.81. This offer is limited for the first lessons only with an additional exclusive 15% discount.

This article is licensed: Premium, by buying this article, you agree with the terms of use.

What will you get from us in the next lessons?
  • Unlimited and permanent access to individual lessons.
  • High quality IT knowledge.
  • Skills to help you get your dream and well-paid job.

Article description

Requested article covers this content:

In this tutorial, we'll learn to use the Timer and BackgroundWorker controls in C# .NET. We'll learn to call a method after a certain time interval.

You gain credits by supporting our network. This is done by sending a helpful amount of money to support the site, or by creating content for the network.

Article has been written for you by David Capka
The author is a programmer, who likes web technologies and being the lead/chief article writer at He shares his knowledge with the community and is always looking to improve. He believes that anyone can do what they set their mind to.
Unicorn university David learned IT at the Unicorn University - a prestigious college providing education on IT and economics.