Read our blogs, tips and tutorials
Try our exercises or test your skills
Watch our tutorial videos or shorts
Take a self-paced course
Read our recent newsletters
License our courseware
Book expert consultancy
Buy our publications
Get help in using our site
548 attributed reviews in the last 3 years
Refreshingly small course sizes
Outstandingly good courseware
Whizzy online classrooms
Wise Owl trainers only (no freelancers)
Almost no cancellations
We have genuine integrity
We invoice after training
Review 30+ years of Wise Owl
View our top 100 clients
Search our website
We also send out useful tips in a monthly email newsletter ...
Software ==> | Visual C# (55 exercises) |
Topic ==> | Using lists (3 exercises) |
Level ==> | Relatively easy |
Subject ==> | C# training |
This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.
To avoid having to draw the form needed for this exercise, right-click on the name of your project in Solution Explorer then choose Add --> Existing Item... (you can also press SHIFT + ALT + A to do the same thing).
Choose only the file called frmSquares.cs in the above folder to import it into your project, then edit Program.cs to make this the default form.
The aim of this exercise is to make the following work:
When you click on the button, your code should create a list containing the first 10 squares, then display the items in this list in the listbox.
Help follows for how to do this on the next page!
To get this code to work, start by creating a list. Since the syntax is so hard to remember, here's a help:
How to create a list in C#.
As this shows, lists don't have to contain just bits of text: they can contain numbers, dates or anything else for that matter.
Now create a loop which goes from 1 to 10, adding the square of the number to the list for each iteration round the loop.
Finally, set the listbox's data source to be the list that you've created:
// show this list of squares
lstSquares.DataSource = squares;
That's it for this exercise!
You can find other training resources for the subject of this exercise here:
Kingsmoor House
Railway Street
GLOSSOP
SK13 2AA
Landmark Offices
99 Bishopsgate
LONDON
EC2M 3XD
Holiday Inn
25 Aytoun Street
MANCHESTER
M1 3AE
© Wise Owl Business Solutions Ltd 2024. All Rights Reserved.