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bcquality/microsoft/knowledge/ui/style-expr-text-vs-boolean.md
Jesper Schulz-Wedde b6da405376 Improve partner onboarding and documentation navigation 
Lead with a complete plugin quick start and add task-oriented usage, troubleshooting, customization, and contribution guides. Preserve the broader plugin framing, correct conflicting contract guidance, support Agents folder reviews, and align repository validation. Convert existing sample references to clickable links without changing knowledge rules.

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2026-09-09 17:25:29 +02:00

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StyleExpr: Boolean toggle vs Text variable

Description

StyleExpr on a page field serves two distinct purposes depending on its type:

  • Boolean — When StyleExpr is a Boolean expression, it controls whether the Style property is applied. In this case the Style property carries the style name; analyze Style and ignore StyleExpr itself.
  • Text — When StyleExpr is a Text variable (e.g. StyleExpr = StatusStyle where StatusStyle: Text and is assigned literals such as 'Favorable'), the variable contains the style name at runtime. There may be no Style property at all — the StyleExpr variable is the style.

When StyleExpr is Text, you must trace the variable's assignments — typically in OnAfterGetRecord or OnAfterGetCurrRecord — to determine which styles can be applied, then apply the same accessibility rules as for a literal Style value.

Best Practice

Inspect the declared type of the symbol referenced by StyleExpr before drawing conclusions. If it is Boolean, evaluate the Style property. If it is Text, follow every assignment to the variable and check the full set of possible style values against cosmetic-styles-need-no-textual-context.md and semantic-styles-need-independent-textual-meaning.md.

See sample: style-expr-text-vs-boolean.good.al.