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getParameterMap and unselected checkboxes

Ken Clark

Joined: Aug 02, 2004
Posts: 11
I'm processing information from a form in a servlet that consists of a table of data, each with a checkbox. Some are selected, and others are not. When I user getParameterMap() or getParameterNames(), I'm only getting data for those rows that have the checkbox selected (true).
How do I also get the checkboxes that are no selected?

Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 63865

You don't. Parameters for unselected checkboxes are not included in the HTTP request when the browser submits the form.

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Bosun Bello
Ranch Hand

Joined: Nov 06, 2000
Posts: 1510
As Bear said, only selected parameters are sent as part of the request. But, since you know those that are selected, you can easily detemine those that are not right?

So much trouble in the world -- Bob Marley
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subject: getParameterMap and unselected checkboxes
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