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Invoice - Automatic Tax and Net value calculation while entering data [message #718]

Wed, 28 March 2007 01:00

douglas
Messages: 9
Registered: August 2006
Location: Kerala

Junior Member

Sir,
I have many fields in the data entry form that the user has to be fed. While entring these fields, some others such as tax (5% of the amount column), welfare fund (2% of the amount column) netAmount (Amount+Tax+welfareFund) etc have to be displayed in the corresponding textboxes provided automatically. How can it be possible. Can you give me some examples?
Yours sincerely
Douglas D'Silva.

Douglas

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Re: Invoice - Automatic Tax and Net value calculation while entering data [message #720 is a reply to message #718]

Wed, 28 March 2007 04:28

AJM
Messages: 2396
Registered: April 2006
Location: Surrey, UK

Senior Member

The contents of an HTML form cannot be changed while the user is inputting data without using some client-side scripting such as javascript. With standard HTML the form contents are constructed on the server and sent to the client in response to a request. The form contents cannot therefore be changed without sending another request to the server and receiving another response.

I do not use any javascript in Radicore, but there are facilities which allow to to include javascript in the HTML output - take a look at http://www.tonymarston.net/php-mysql/radicore-and-javascript .html for details.

Tony Marston
http://www.tonymarston.net
http://www.radicore.org

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