Detecting only blank spaces in field

[McScripta]

Is there a simple fix for a field to detect that it only has space(s) in it (" ", "  ", "   ", etc) and make the field blank if it does?

[Raybaudi]

Case(
Trim ( Self ) ≠ "" ; Self
)

 

[McScripta]

is this calculation for field validation?

[Raybaudi]

No, it is for the field's auto-enter option.

Edit: Remember to uncheck the box: "Do not replace existing value of field (if any)"

Edited September 11, 2015 by Raybaudi

[McScripta]

thank you!