only validate a single field

[Blurri]

Hi,

We have a registration form. And we want to check on blur if the email is available.
Now is it somehow possible to only validate and show a error for this email field
without validating the complete form with form.getValue() ?

[ishigamii]

This feature would be very useful maybe PR

[thnardi]

to validate only a filed you can use something like that: this.formRef.getComponent('email').validate() - you will validate only this field.

by validate, as far as i know, this tcomb-form-native, verify if the field value satisfy the type (or subtype) conditions..

if you need to satisfy your condition async in an external source, i belive it will not be possible by the subtype definition, because the tcomb-form-native only work (again, as far as i know) with synchronous code.

I solved this in my solution by ignoring the 'validate ()' function and modifying the field option directly by change the 'hasError' using t.update() .