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http://stackoverflow.com/questions/4693 ... eric-input

http://www.texotela.co.uk/code/jquery/numeric/


JavaScript (the most reliable still)

<input type="text" onkeypress='return event.charCode >= 48 && event.charCode <= 57'>
</input>
While this is simple, it will not let you use combination keys and other non typeable keys. For a more complete JavaScript solution that also supports input of type number and max length validation, consider using this Polyfill.

HTML 5 (does not require JavaScript, and also does not behave in standard way in many modern browsers.)

<input type="number">

Try input type=number to see the HTML5 version in action.

jQuery

$(document).ready(function() {
$("#txtboxToFilter").keydown(function (e) {
// Allow: backspace, delete, tab, escape, enter and .
if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
// Allow: Ctrl/cmd+A
(e.keyCode == 65 && (e.ctrlKey === true || e.metaKey === true)) ||
// Allow: Ctrl/cmd+C
(e.keyCode == 67 && (e.ctrlKey === true || e.metaKey === true)) ||
// Allow: Ctrl/cmd+X
(e.keyCode == 88 && (e.ctrlKey === true || e.metaKey === true)) ||
// Allow: home, end, left, right
(e.keyCode >= 35 && e.keyCode <= 39)) {
// let it happen, don't do anything
return;
}
// Ensure that it is a number and stop the keypress
if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
e.preventDefault();
}
});
});
More complex validation options

If you want to do some other validation bits and pieces, this could be handy:

http://www.javascript-coder.com/html-fo ... tion.phtml https://github.com/lockevn/html-numeric-input

But don't forget you still must do server side validation!

for AZERTY keyboard:

jQuery

// Allow: backspace, delete, tab, escape, enter and .
if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
// Allow: Ctrl+A
(e.keyCode == 65 && (e.ctrlKey === true || e.metaKey === true)) ||
// Allow: Ctrl+C
(e.keyCode == 67 && (e.ctrlKey === true || e.metaKey === true)) ||
// Allow: Ctrl+X
(e.keyCode == 88 && (e.ctrlKey === true || e.metaKey === true)) ||
// Allow: home, end, left, right
(e.keyCode >= 35 && e.keyCode <= 39) ||
//Allow numbers and numbers + shift key
((e.shiftKey && (e.keyCode >= 48 && e.keyCode <= 57)) || (e.keyCode >= 96 && e.keyCode <= 105))) {
// let it happen, don't do anything
return;
}
// Ensure that it is a number and stop the keypress
if ((!e.shiftKey && (e.keyCode < 48 || e.keyCode > 57)) || (e.keyCode < 96 || e.keyCode > 105)) {
e.preventDefault();
}