Post-code on Form

[dr223]

Hallo,

I have a post code field on my form. What I want to do is, if a user enters a wrong code ... i,.e., not Post code format it alerts the user of post-code not in use. Please if there is any example of a database of this functionality usage or a way of doing it will be much appreciated.

I live in UK and the post codes down here are like E12 5AH ....

Many thanks

 

[Uncle Gizmo]

I looked into this a few years ago and came up with the "postcode example" on this page here. you may be able to adapt it to your needs.

You can also use RegEx There is an example here, although I am not convinced that it is valid for every type of postcode. In other words I would check this yourself first.