String validation trouble 1

[frozenpeas]

Hello,

I am trying to limit a string to only alphanumeric characters. The trouble is that it will allow illegal characters as long as legal characters are also in the string.

"THIRTY" is allowed;
"30" is allowed;
"+" is not allowed;
"30+" is allowed but should not be allowed;

Here is the state of my function:

var checkChars:Function = function(input){
		var i:Number = 0;
		while(i<txtinput.length && (" abcdefghijklmnopqrstuvwxyz0123456789").indexOf(input.charAt(i)) != -1){
			goodString = true;
			i++;
		}
		if(goodString==true){
			return 1;
		}else{
			return -1;
			errFlag = true;
		}
	}

Thanks everyone.

frozenpeas
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[billwatson]

cant you just use the in built function

mytext.restrict =

http://www.macromedia.com/support/f...pt_dictionary/actionscript_dictionary762.html

 

[frozenpeas]

My word... I wish I had known about that function a couple of hours ago! Ha.

Thanks.

frozenpeas
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