9/2/08 1:29 PM, also sprach [EMAIL PROTECTED]: > is there any easy way to validate a textfield?
Yes. Multiple ways--NSFormatters, Key-Value Validation, and more. > my app has a textfield, which should only accept emailaddresses. > > before I start reinventing the wheel, it's probably a good idea to ask here. > google turned up nothing so far - maybe my searchterms -nstextfield formatter > validation email- where wrong? I doubt there are any out-of-the-box solutions for this. Someone may have created a formatter/validator class, but you will have to watch out for extensibility. It is probably just as easy to roll your own, but use known patterns for email validation. Generally, you need to wait for the entry to be complete before performing validation. There is no way that I know of to determine the validity of a part (other than allowed characters in the name part). Also, you can only determine syntactical validity. You can't know whether an email is truly valid. To help the process you could have a formatter that simply doesn't allow the entry of invalid characters, and to force case-folding, as well as some basic prevention such as avoiding multiple @'s. After the fact, you will be happier if you use a regular expression class to test the overall syntax. You should be able to find examples online. HTH, Keary Suska Esoteritech, Inc. "Demystifying technology for your home or business" _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
