Visual Basic | Testing conditions exercise | Check a user has made sensible dating choices

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 ==> Testing conditions  (2 exercises)
Level ==> Relatively easy
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).

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Press CTRL + D to add the file called frmPreferences.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:

Dating agency form
 

Write code for the OK button to display error messages if you leave either combo box blank:

Dating form left blank message Message if person not filled in
If the first one is blank ... If the second one is blank ...

You can check the length of the text property of a combo box to see if it's blank.  If both combo boxes are filled in, show the user the choices they've made:

Confirmation message
 

That's it! 

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.
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