Don't process the <form> if the <input> DOESN'T contain an underscore (HELP)!

AnonLeo · Jan 20, 2014

I have a <form> (http://jsfiddle.net/FEF7D/4/)
Some users submit an ID that has only numbers in it (e.g. 981734844).
And some users submit an ID that has underscore "_" (without quotes) in it (e.g. 28371366_243322).

What I want to do is NOT allowing the users that submit an ID with ONLY numbers in it (e.g. 89172318) to process the form action.

In other words:
82174363278423: Don't allow to process the form action
21489724893249_2918423: Allow to process the form action

Is it possible to do that? Any ideas?

Thanks

trajek · Jan 20, 2014

In your onsubmit function check the id string for the presence of the underscore character. If it contains an underscore allow it to continue. If it does not contain an underscore show an error alert and dont allow the submit to continue.

AnonLeo · Jan 20, 2014

trajek said:
In your onsubmit function check the id string for the presence of the underscore character. If it contains an underscore allow it to continue. If it does not contain an underscore show an error alert and dont allow the submit to continue.

Oh I got it, thank you

mypmmail · Jan 20, 2014

just adding a snippet of code that illustrate trajek's answer

Code:

<html>
	<head>
		<script src="http://code.jquery.com/jquery-latest.min.js"></script>
		
		<script>
		jQuery(document).submit(function(event, data) 
		{ 
			if (jQuery("#id").val().indexOf("_") >= 0) {
				alert("_ detected"); // change it to whatever message you wished to be shown.
				return false;
			}
		}); 

		</script>		
	</head>
 
	<body>
		<form action="b.jsp" method="POST" id="myform"><br/>
			id : <input type="id" id='id' value="1" /><br/>

			<input type="submit" value="Submit" />
		</form>
	</body>
</html>

Don't process the <form> if the <input> DOESN'T contain an underscore (HELP)!

AnonLeo

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trajek

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AnonLeo

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mypmmail

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