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-rw-r--r--user_guide_src/source/libraries/form_validation.rst1
1 files changed, 1 insertions, 0 deletions
diff --git a/user_guide_src/source/libraries/form_validation.rst b/user_guide_src/source/libraries/form_validation.rst
index 3f723696e..cbf802864 100644
--- a/user_guide_src/source/libraries/form_validation.rst
+++ b/user_guide_src/source/libraries/form_validation.rst
@@ -964,6 +964,7 @@ Rule Parameter Description
or not numeric.
**between** Yes Returns FALSE if the form element is not within the given range. between[10,20]
**in** Yes Returns FALSE if the form element is not within a predetermined list. in[red,blue,green]
+**not_in** Yes Returns FALSE if the form element is within a predetermined list. not_in[red,blue,green]
**date** No Returns FALSE if the form element is not a proper date.
**alpha** No Returns FALSE if the form element contains anything other than alphabetical characters.
**alpha_numeric** No Returns FALSE if the form element contains anything other than alpha-numeric characters.