# Textfiled.restrict() problems

**URL:** https://forum.kirupa.com/t/textfiled-restrict-problems/52668
**Category:** flash
**Created:** [May 26, 2004, 8:13am UTC](https://forum.kirupa.com/t/textfiled-restrict-problems/52668 "2004-05-26T08:13:37Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![mindfriction](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/mindfriction/32/172_2.png) [@mindfriction](https://forum.kirupa.com/u/mindfriction)
#### Post date: [May 26, 2004, 8:13am UTC](https://forum.kirupa.com/t/textfiled-restrict-problems/52668/1 "2004-05-26T08:13:37Z")

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Hi guys,

Im trying to using the retrict function of textfield to allow numbers, the alphabet and the @ and . (fullstop). Essentially its for a login page im creating where users login using their email address.

For some reason I cant get it to allow fullstops (.), and the backspace key doesnt work to delete stuff in the field.

Here’s what I have:

```auto

username_txt.restrict="a-zA-Z0-9@\\.";

```

Anyone got any clues?