You want to set the first letter in a field to uppercase, this is usually the case for fields that contain a persons name, etc.
- Create a field called ‘Name’.
- Create a new action rule for the field and set it up as follows:
concat(translate(substring(Name, 1, 1), "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOPQRSTUVWXYZ"),substring(Name,2,string-length(Name-1)))
Now, when a person enters ‘mary’ as a name, the form will automatically update to ‘Mary’ when they proceed to the next field.