Validate Text

[Wellswood]

I have a text input box to gather an email address. At the moment someone could leave it blank or enter just one letter or number before hitting submit.

Is there a way to prevent the submit action unless the email address includes the "@" symbol?

[holtgrewe]

ww

Try something like this on the On Key event of your input:


if e_Key == 9 or e_Key == 13 then -- tab or enter
whazup = String.ReverseFind(Input.GetText("Input1"), "@", false)
if whazup == -1 then
Dialog.Message("Try Again: "..whazup, "Not a valid address")
end
end

I had to play around with this to find out what the reverse find returned when unsuccessful. (-1)

hth

[holtgrewe]

or...
String.Find()
either should work for you.

[Wellswood]

I tried your first suggestion and it worked. I have since mada a change so that it executes when I click submit button as well as on key.

Just to help learn and understand I shall experiment more and try your second suggestion.

Many thanks for your help.