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Textareas, Checkboxes and Radio ButtonsTry It Out – Checkboxes and Radio ButtonsLet's look at an example that makes use of all the properties, methods, and events we have just talked about. The example is a simple form, which allows a user to build a computer system. Perhaps it could be used in an e-commerce situation for buying computers online with the exact specification determined by the customer.
Save the page as ch6_examp6.htm and load it into your web browser. You should see a form like the one below:
Tick some of the checkboxes, change the processor speed and hit the Check Form button. A message box will appear giving details of which components and what processor speed you selected. For example, if you select a DVD-ROM and a Zip Drive, and 1.5GHz processor speed, you will see the following:
Note that the 1 GHz processor is out of stock, so if you choose that, a message box will appear telling you that it's out of stock, and the 1 GHz processor speed radio button won't be selected. The previous setting will be restored once the user dismisses the message box. |
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Created: February 5, 2001
Revised: February 5, 2001