I create some extra fileds with type dropdown.
Then, user create new item, and he DON'T want to choose any in this extrafileds.
But after saving items have extra fields with 1-st label.



User and me too have no any way to no choose some extrafileds...

Is it normal???

Browsers always set the dropdowns to the first available option if there is no value.

Are you sure?

This is example, when in k2 user can choose or not choose category:



As you can see, this dropdown menu have "empty" value.

Here second example, in adsmanager form:




So, extra fields in k2 don't have "no value" option! It's not good...

Yes i am sure. You need to add an empty option.

Yes, sorry... :blush:
I don't know that it's need to add empty option manually.
But I have new question, is it real to setup required fields?

Unfortunatelly K2 doesn't support required extra fields.