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getParameterMap and unselected checkboxes

 
Ken Clark
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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?

Ken
 
Bear Bibeault
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You don't. Parameters for unselected checkboxes are not included in the HTTP request when the browser submits the form.
 
Bosun Bello
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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?
 
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