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 | Form validation exercise | Create a form with ErrorProvider controls
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.
The answer to the exercise will be included and explained if you attend the relevant Wise Owl course (sadly, only in the UK for now).
| Software ==> | Visual Basic (46 exercises) |
| Version ==> | Any version of VB |
| Topic ==> | Form validation (3 exercises) |
| Level ==> | Average difficulty |
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Add the frmNewHeart form in the folder above into your project (or work with a copy you already have).
Add an ErrorProvider control to your form, and rename this as errTypical.
Code the Validating event of the name and age text boxes so that:
- you see an error next to the name if it has been left blank; and
- you see an error next to the age if it is blank, or not an integer
Test out your ErrorProvider control - here's what you should see if you leave the age blank:
A lady like this never reveals her age
Test our application, then close down its forms.