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How to handle VBScript of Form's OnSubmit?

Posted on 2000-02-18
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Last Modified: 2008-02-01
If a form's OnSubmit handler is a javascript function, it can return FALSE to prevent the form from being submitted.

But in my environment I have VBScript as my script language so when I created the onsubmit handler (via double clicking on the form's onsubmit entry in the script outline in Visual Interdev) it creates an onsubmit SUB instead of a function.

How then do I indicate an error had occured and that the form should not be submitted?
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Question by:rascal
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by:rascal
ID: 2536359
Note: I have found that by setting the form's action="" in the onsubmit handler it appears to result in the effect I am after, but it seems to reload the current page and what would be most desirable would be for the current submit to simply cancel and no reload the current page.
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by:tbain44
ID: 2536617
i don't know what your code looks like, but if you run into an error, and you don't want the form to submit, try

window.event.returnValue = false;

or you can make your submit into <input type="button">

and then have an onClick event for the button which calls some sub or function and if whatever validation or whatever fails then don't do anything, and if you want the form to submit, then

frmName.submit() 'submits form

------------

by having action="" or by not specifing an action, all you do is have the form submit to itself instead of some specified page.

let me know if that doesn't work for you because i don't usually work with vbscript, except for my asp coding.
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by:rascal
ID: 2536733
Thank you very much! That worked and was much cleaner than what I was using in that it did not navigate to itself in case of an error, it just canceled the onsubmit.
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clockwatcher earned 50 total points
ID: 2537411
You can also change your handler into a function and return false-- the same way that it works under javascript.

<html>
<head>
<script language="vbscript">
function myForm_onsubmit()

  if document.myForm.message.value <> "hello there" then myForm_onsubmit = false

end function
</script>
</head>
<body>
<form name=myForm action="whatever.asp">
<input name="message">
<input type="submit">
</form>
</body>
</html>
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