Hi

how can i check if user used uppercase letters in a field ?

i have problem with matching characters

how can i check if user used uppercase letters in a field ?

Well assuming you know how to get the values of fields in javascript, you could use regular expressions. A more dirty way of doing it would be converting the value to lower case and then comparing it to the origianl value, if they are not equal than it contains upper case.

i was truing to use maching characters

but with this way it was very easier

thanks ;)

regular expressions is the most recomended thing to use :)

No doubt regular expression is the way to go. The other way of doing this can be when user clicks on submit button, the text is converted to upper case by itself. that way user doesnt have to go and insert text again in upper case.

Originally posted by artin1982
Hi

how can i check if user used uppercase letters in a field ?

i have problem with matching characters

Strictly speaking I believe it would be ....

if (document.formname.fieldname.value.toLowerCase() != x) {
// x has Upper Case Characters
}

simply change all the submited value to lowercase...no need to check >> waste time

I probably don't need to mention this, but don't rely solely on client-side javascript validation. If you do, your web application is wide open to malicious input from users who simply disable javascript. Client-side validation has its uses, but it is not a 100% replacement for server-side validation of input.

thanks all but my problem resolved !

>ActivI yes thats is very easier

>magixman i used this code ;)

>Priyanka & hehachris : yes but i need to user know this , this was username for a special program that it allow only lowercase letters ! so if i change user name to lowercase without notifying user , he will have problem later ;)