Get up to 60 % extra points for free! More info
Only this week sale up to 80 % on e-learning courses of Java
discount week 60 - halloween

Lesson 13 - DispatcherTimer and BackgroundWorker in C# .NET

In the previous lesson, Handling Rectangle Clicks in C# .NET WPF, we completed an application that rendered geometric shapes on a Canvas. In today's C# .NET tutorial, we're going to learn how to use DispatcherTimer and BackgroundWorker. We're going to try both classes on illustrative examples.

The Form Application Loop

If you remember our console tutorials, you know that when we wanted to repeat something, we simply put the code into a loop. If we wanted to count down 10 seconds, the code would look like this:

for (int i = 10; i > 0; i--)
{
    Console.WriteLine(i);
    Thread.Sleep(1000);
}

The result:

Console application
10
9
8
7
6
5
4
3
2
1

This can't be done in WPF. The operation above takes 10 seconds to complete. When you run a similar long-running operation, it's being executed on the form thread, making the form freeze. The application will stop responding, and after a few seconds, Windows will even offer to terminate it. 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 lessons and exercise submitting one by one 250 points
Buy all currently available lessons with exercise submitting and other features for an exclusive price 213 points ($19.17)
Currently, you have 0 points
By buying this exclusive package, you'll have access to all 44 lessons in this course including exercise submitting while saving $3.33. This offer is limited for the first lessons only with an additional exclusive 15% discount.
You gain 213 points for adding an article to the site, or for $22.50 $19.17

Warning, by buying just this lesson you'll lose the limited 15% discount for the package of all the lessons.

Buy only the lesson 10 points
Currently, you have 0 points
You gain 10 points for adding an article to the site, or for $0.90

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 show DispatcherTimer and BackgroundWorker in C# .NET WPF. We'll learn how to run a method after a certain time interval.

You gain points 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 Radek Němec
Avatar
Activities