Problem:
This demo shows how to prevent user from submitting the form more than once using JavaScript.
Resolution:
INTRODUCTION
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This demo shows how to prevent user from submitting the form more than once using JavaScript.
SOURCE FILES:
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Program Files Description
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mycgi.cbl CGI program
Copy Files:
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mycgi.cpf Generated by Form Designer
mycgi.cpv Generated by Form Designer
mycgi.cpy Generated by Form Designer
Form Files:
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HTMLPage.htm Input form (containing JavaScript)
HTMLPageOut.htm Output form
JavaScript Files:
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mfcommon.js Added by Form Designer (from \\NetX\\base\\bin)
OPERATION:
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1. Load JS-SubmitOnce.app into Net Express
2. Click Project > Update All Dependencies
3. Click Project > Rebuild All
4. Click Animate > Run (or F5 or click on the Running-man button)
5. Test to see if the form allows to submit more than once
NOTE:
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Bear in mind that the enter key allows to submit a form as well, and the JavaScript in input form takes that in consideration.
Another way to prevent the user from submitting more than once would be by disabling the submit button after the first submit.
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Keywords: demonstration, sample, example, demo, web programming, ftpdemo.zip
demo.ex
demo.ne
demo.se
