restricting character set in a Textinput field

Question

I have a TextInput field that should be restricted to either capital letters, lowercase letters, numbers and underscores. This is the code I'm trying to use to restrict characters:

restrict="\\A-Z\\a-z\\0-9\\ \\_\\-"

I'm using MXML for this Textinput component.

Unfortunately this does not restrict the \ character, which is the last character I'd like to restrict.

How can I add the backslash to the list of restricted characters?

Thanks

Stephen

Sthilaire

Answer 1

Actually found the solution I've amended the restrict code to:

restrict="A-Za-z0-9 _\-"

I took out all the back slashes which I thought or was using as delimiters.

Works fine now.

Sthilaire

Go ahead and accept your own answer! However, before you do, it looks like you've accidentally left the backslashes in in your revised code. – Pickpocket

Yes, the answer should read: restrict="A-Za-z0-9 _\-". The last backslash escapes the dash character which if not escaped specifies a range (e.g. A-Z) – Prurigo

Note that if you are specifying restrict in ActionScript, you need a double-backslash. Like so: myTextInput.restrict="A-Za-z0-9 _\\-" – Hunt