Exercise: Write properties in VB.NET to calculate someone's BMI

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 Wise Owl course listed below!

Category ==> Visual Basic 2010  (42 exercises)
Topic ==> Creating properties  (3 exercises)
Level ==> Average difficulty
Course ==> Introduction to VB.NET
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.

Press CTRL + D to add the file called frmBMI.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.

Attach code to the button to calculate your body mass index (BMI) so that it looks like this:

Private Sub btnShowBmi_Click(sender As Object, e As EventArgs)

Handles btnShowBmi.Click

'call function to show result

MessageBox.Show("Your BMI is " + BMI.ToString("0.00"))

End Sub

ReadOnly Property BMI As Double

Get

'return someone's BMI, based on their weight and height

Return PersonWeight / (PersonHeight * PersonHeight)

End Get

End Property

Of course, you'll have to create the PersonWeight and PersonHeight properties too ...

Here's what you should see when you run your system:

Form with BMI button Message box showing BMI
Type in your details ... ... to show your BMI

That's it! 

This page has 0 threads Add post