Hi Duane,
I think this
Not Like "*[!A-Za-z]*"
is neater, but like your expression it may not be satisfactory
satisfactory because it excludes accented characters and characters that
are alphabetical in some languages (such as å ä ö in Swedish). I think
the best that can be done with a validation rule is something like this
but with a longer list of letters:
Not Like "*[!A-Za-zÁÅÄÉáéåäÖö]*"
You might want to set the Validation Rule property to
Like "*[a-zA-Z]" And Not Like "* *"
This will allow any number of characters to be entered and won't accept
numbers or spaces.
Someone more familiar with Regular Expressions might have a better solution.