Cognito-forms – Validate text field to hold only digits

I am a developer for Cognito Forms. We do not offer the ability to transfer the choice field on one form into another form. You can however let users type in their own choice by selecting Radio Buttons as the type and then checking the box next to "Allow Fill In".

Users will then be able to select a blank text box and type in their own information.

We use JSON as our data transmission format when posting data to a client's site. When we post to a website we post as JSON. You will need to parse that data on your end. You can have your form post to requestb.in to see what the data looks like.

I am a developer for Cognito Forms.

When using a phone field set to the US, your phone number will look like a line of numbers until you click out of the field.

Then field will then auto verify that all characters are numbers and that 10 characters have been added.

If you have fewer then 10 characters or have a non-numeric character you will receive an error message. This will only happen when the field is set to "US".

For phone fields set to international we do not have validation. This is because of the wide variation between phone numbers in difference countries. We are considering ways to incorporate validation for this, like using Google's phone number library.