How to Program the Timer Control in VB.net

The timer control allows you to set specific time intervals until some code has to be executed. Here is how you program the timer control in VB.net

Difficulty: Easy

Instructions

Things You'll Need:

• VB.net

1. Open VB.net and create a new windows application.

2. 
    
   Listbox

   Add a listbox to the form. We are going to use the listbox to add items to it every time the timer control gets exceuted.

3. 
    
   Timer Control

   Add the timer control to your form. Notice how the timer control is not actually shown on the form but instead in a different panel at the bottom.

4. 
    
   Timer Properties

   Click on the timer control and press the F4 key to bring up the timer's property window.

5. 
    
   Enabled Property

   Change the timer's enabled property from false to true.

6. 
    
   Interval Property

   Chaneg the timer's interval property to 1000 which is about one second.

7. 
    
   Tick event

   Double click the timer control to bring up the timer's tick event.

8. 
    
   Code

   In the tick event we are going to add the code:
   ListBox1.Items.Add(ListBox1.Items.Count)
   
   What this does is add to our listbox the number of items in the listbox each time the tick event executes which we set earlier to 1000 or about every second.

9. Run the program by pressing the F5 key on your keyboard.

10. 
     
    Final Results

    Notice how the numbers get added to the listbox.

Resources

• Mike's "How-to" Blog