Thats Fab!!! Thank you so much! Works a treat.
If I was to restrict more than one character of my choice would I just add it within the ' ' or is there another way to do it?
Many thanks for your time
Dan
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Question
Stop spaces being used in text box
Hello
I need to stop people entering spaces in a text field so is it possible to restrict them from doing this? Also I may need at a later date other characters restricted within another field.
Could you please show me how to do this if possible?
Many thanks
Dan
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Answers
Two ways for you:
<html>
<head><title>Demo</title>
</head>
<body>
<form>
<p>Remove after input complete: <input type="textbox" onchange="this.value = this.value.replace(/ /g,'');" ><br />
(Note the / /g contains a space, and it is a regular expression, and so has no quotes - see the RegExp object for details. This will allow you to block other characters/patterns).
</p>
<p>Remove during input: <input type="textbox" id='one' ><br />
<script>
// Get out input field
var input = document.getElementById('o
//attach a function to return false if the key pressed is a space
input.onkeypress = function ( e ) {
if(!e) var e = window.event;
if(e.keyCode){
key = e.keyCode;
} else if(e.which){
key = e.which;
}
return ( String.fromCharCode( key ) != " ")
}
</script>
</p>
</body>
</html>
A modification of cem_turk's answer:
If you would like to restrict multiple characters, pass thru an array of characters and parse the list like this:
<script type="text/javascript">
function restrict(tbox,chr)
{
for(var i=0; i<=chr.length; ++i)
tbox.value=tbox.value.repl
}
</script>
Space, dots and the letter 'g' are not allowed here: <input type="text" onkeyup="restrict(this,[' ','.','g'])">
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by: cem_turkPosted on 2006-02-28 at 04:30:43ID: 16064594
<script type="text/javascript">
function restrict(tbox,chr) {
tbox.value=tbox.value.repl
}
</script>
Spaces are not allowed here: <input type="text" onkeyup="restrict(this,' ')"><br>
Dots are not allowed here: <input type="text" onkeyup="restrict(this,'.'
when calling restrict function specify the character to be restricted inside the aposthropes ' ' for space '.' for dot etc...