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Exercise: Using properties to validate min and max ages
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The answer to the exercise will be included and explained if you attend the Wise Owl course listed below!
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Create a new website, and add the 4 files from the folder above into it, then create a new web page called frmRequest, based on the yoda.master master page.
Create 3 properties (see below) and code so that the form allows you to choose your ideal date's age range:
If you leave either age limit blank, or input an invalid value, you get an error
The properties that you should create are as follows:
- MinimumAge, giving the minimum age typed in (or -1 if this isn't a valid integer)
- MaximumAge, giving the maximum age typed in (or -1 if this isn't a valid integer)
- ErrorMessage, giving the error message to display
For each property, think whether it should be ReadOnly, ReadWrite or WriteOnly.
Choose your ideal date's age range - you should see a confirmation message:
This person has catholic tastes ...
Save and close any files that you have open.