New answers tagged validation
Use your scheme with invitations and links but do put the new users in a walled-garden like environment. They are associated to their corresponding admin, they may sign in and use basic functions (like sending the admin a message or related functions) but the admin has to verify the logged in user, this will be a one-more-click process for the admin, but a ...
One reason that I've had to implement restrictions on spaces and dashes is that to get a mobile device to pop up the numeric keyboard instead of the full keyboard, it's useful to have a pattern="[0-9]*" property for greater browser support. For the moment, this is part of the only cross browser solution.
Although it may seem useful that inline validation for pre filled form fields is ok, it depends on the kind of field that you are addressing. If the address fields are not critical to further information from the user, then you can use the green validation. Else it might be better to let the user validate the information.
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