Released: Jan 15, 2026

v2.5.6 での更新項目

機能

• [Survey Creator] Expression Validation
  • This Survey Creator release adds built-in expression validation that helps authors identify issues early. Survey Creator detects three types of errors:
    • Unknown variable
      • The expression references an undefined variable or an unknown question, panel, or page name. This check is disabled by default. To enable it, set the expressionsValidateVariables property to true.
    • Unknown function
      • The expression references an unregistered function. You can disable this check by setting the expressionsValidateFunctions property to false.
    • Syntax error
      • The expression contains invalid syntax, such as unmatched parentheses, missing operands, or invalid operators. You can disable this check by setting the expressionsValidateSyntax property to false.
• Customize RegExp Validation Dynamically
  • In SurveyJS, regular expressions are used to validate user input against custom rules. Previously, you could only define a pattern and specify whether matching should be case-sensitive. This release introduces the onCreateRegexValidator event, which allows you to customize the regular expression and control additional matching behavior via flags.

不具合の修正

• Form Library
  • Expressions: The 'contains' operator ignores the case sensitivity setting.
  • Expressions are not re-evaluated when they depend on a survey object property and that property changes.
  • Question number styling is incorrect after the question's visibility changes.
  • toJSON() with validatePropertyValues: true treats choices whose value is an object as invalid.
  • Localization JSON schemas are generated incorrectly when the survey includes composite or specialized questions.
  • Ranking: Dragging a choice option causes ghosting artifacts.
• Survey Creator
  • [Angular] Preview tab: Required mark disappears when the question receives focus.