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Software ==>	Visual C# (55 exercises)
Topic ==>	Properties in C# (3 exercises)
Level ==>	Relatively easy
Subject ==>	C# training

Use read-only properties to process a dating agency application

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.

Before you can do this exercise, you'll need to download and unzip this file .

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 frmOldies.cs in the above folder to import it into your project, then edit Program.cs to make this the default form. When you run your application, you should now see this:

When someone types in their name/age and clicks on the button, they should see confirmation of their name, age and status (read on for what this means!).

Create the following properties for your application form for this senior citizens' dating agency (motto: It's never too late to date!):

Property	Type	Contains
PersonName	Read-only	The name of the applicant
Age	Read-only	The age of the applicant
Status	Read-only	Senior citizen if over 65; adult if over 18; child otherwise
IfEligible	Read-only	Whether this person can join (they must be over 65 to do so)

If you've written these properties correctly, you should be able to attach the following code to the Show details button to show a summary of this applicant's status in the output or immediate window:

// print out details of this person (must reference

// System.Diagnostics namespace at top of code)

Debug.WriteLine("PROPERTY VALUES");

Debug.WriteLine(" ");

Debug.Indent();

Debug.WriteLine("Name = " + personName);

Debug.WriteLine("Age = " + age.ToString());

Debug.WriteLine("Status = " + status);

Debug.WriteLine((IfEligible ? "Eligible" : "Not eligibile"));

Debug.Unindent();

Here's what your output should look like when you enter a couple of people's details (here we're showing this by using the Debug.WriteLine command):

Here we've entered the details of two people at the opposite ends of life. Which one do you suppose is the more content?

Close down your application and any open forms.

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

You can find other training resources for the subject of this exercise here:

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Use read-only properties to process a dating agency application

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