Dob field

Sorry, I'm having a lot of trouble understanding what you're trying to ask here.  My only guess is, you're asking if a user can enter a DOB, and then once it's populated, an Age value will be shown elsewhere on the same interface?  Please confirm if this is close, and if so, I can help show you how this would be implemented.

Hi,

As mike mentioned in your question you haven't provided much details. I am guessing this is what you are looking for.

a!localVariables(
  local!dob,
  local!age,
  {
    a!dateField(
      label:  "DOB",
      value: local!dob,
      saveInto: {
        local!dob,
        a!save(
          local!age,
          if(
            a!isNullOrEmpty(local!dob),
            null,
            int(tointeger(tointervalds(today()) - tointervalds(local!dob))/365)
          )
        )
      }
    ),
    a!textField(
      label: "Age",
      value: local!age,
      readOnly: true
    )
  }
)