Generic class that allows only alpha numeric values in text

Question

how to write a generic class that allows only alpha numeric values in text boxes

Mangesh Gaherwar · Answer

Hope u mean jquery or javascript here $.fn.regexMask = function(mask) { $(this).keypress(function (event) { if (!event.charCode) return true; var part1 = this.value.substring(0 this.selectionStart); var part2 = this.value.substring(this.selectionEnd this.value.length); if (!mask.test(part1 + String.fromCharCode(event.charCode) + part2)) return false; }); }; $(document).ready(function() { var mask = new RegExp('^[A-Za-z0-9 ]*$') $(input).regexMask(mask) }); u can use this for Reference http://jsfiddle.net/nqvsngd3/ Mark approved for this