WISE OWL EXERCISES
VISUAL BASIC EXERCISES
VISUAL BASIC EXERCISES
- Drawing forms (2)
- Form events (1)
- Variables and data types (2)
- Enumerations and constants (2)
- Form validation (3)
- Menus and toolbars (2)
- Files and folders (1)
- Basic DataGridViews (1)
- Reacting to DataGridView events (3)
- Advanced DataGridViews (2)
- Creating classes (4)
- Coding in VB.NET (2)
- Variables and constants (3)
- Testing conditions (2)
- Passing arguments (3)
- Using arrays (2)
- Loops (2)
- Working with files (3)
- Lists (3)
- Creating properties (3)
Visual Basic | Variables and constants exercise | Show number of characters in text using variables
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.
You can learn how to do this exercise on the relevant Wise Owl classroom training course (sadly for the moment only in the UK).
| Software ==> | Visual Basic (46 exercises) |
| Version ==> | Any version of VB |
| Topic ==> | Variables and constants (3 exercises) |
| Level ==> | Relatively easy |
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Press CTRL + D to add the file called frmWordLength.vb from the above folder into your project (or right click on the project and choose to add it as an existing item).
Change your project's properties to make this the default form for your project. When you run your project, you should see this:
The aim of the exercise is to show how many characters are in the phrase typed into the box.
Double-click on the left button to create an event-handler for it. Within this, create the following variables:
| Variable | Type | Will hold |
|---|---|---|
| phrase | string | The text typed into the box |
| phraseLength | int | The number of characters in the phrase |
Extend this code so that when you click on the button you see two messages, one after the other:
|
|
| The first message | The second message |
Now get the second button to work, using the Replace method to replace any spaces with empty strings:
When you click on the second button you should see a lower total, which omits spaces. For example, "Wise Owl".Replace(" ","") would return WiseOwl.
That's it! You can now close down any files that you have left open, and plan how to fund your new software through KickStarter.