truenas/docs/schema/show_if.md

Show if

show_if can only access variables that are defined in the same level as the variable that has show_if defined.

Expression syntax

[[ "variable_name", "operator", "value" ]]

Operator	Description	Example
=	Value of variable_name is equal to "value"	[[ "variable_name", "=", "value" ]]
!=	Value of variable_name is not equal to "value"	[[ "variable_name", "!=", "value" ]]
>	Value of variable_name is greater than "value"	[[ "variable_name", ">", "10" ]]
>=	Value of variable_name is greater or equal to "value"	[[ "variable_name", ">=", "10" ]]
<	Value of variable_name is less than "value"	[[ "variable_name", "<", "10" ]]
<=	Value of variable_name is less or equal than "value"	[[ "variable_name", "<=", "10" ]]
in	Value of variable_name is contained in "value"	[[ "variable_name", "in", "value" ]]
nin	Value of variable_name is not contained in "value"	[[ "variable_name", "nin", "value" ]]
rin	Value of variable_name includes "value"	[[ "variable_name", "rin", "value" ]]
rnin	Value of variable_name does not include "value"	[[ "variable_name", "rnin", "value" ]]
^	Value of variable_name starts with "value"	[[ "variable_name", "^", "value" ]]
!^	Value of variable_name does not start with "value"	[[ "variable_name", "!^", "value" ]]
$	Value of variable_name ends with "value"	[[ "variable_name", "$", "value" ]]
!$	Value of variable_name does not end with "value"	[[ "variable_name", "!$", "value" ]]
~	Value of variable_name matches the regular expression "value"	[[ "variable_name", "~", "value" ]]

Examples:

- variable: variable1
  label: Variable 1
  schema:
    type: string
    default: "some value"
- variable: variable2
  label: Variable 2
  schema:
    type: string
    show_if: [["variable2", "=", "some value"]]