DevExpress v24.2 Update — Your Feedback Matters Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release. Take the survey Not interested RuleCombinationOfPropertiesIsUniqueAttribute Constructors Defines a validation rule that demands the target properties’ values combination be unique. Name Parameters Description RuleCombinationOfPropertiesIsUniqueAttribute(DefaultContexts, String) targetContexts, targetProperties Initializes a new instance of the RuleCombinationOfPropertiesIsUniqueAttribute class. RuleCombinationOfPropertiesIsUniqueAttribute(String, DefaultContexts, String, String) id, targetContexts, targetProperties, messageTemplate Initializes a new instance of the RuleCombinationOfPropertiesIsUniqueAttribute class. RuleCombinationOfPropertiesIsUniqueAttribute(String, DefaultContexts, String) id, targetContexts, targetProperties Initializes a new instance of the RuleCombinationOfPropertiesIsUniqueAttribute class. RuleCombinationOfPropertiesIsUniqueAttribute(String, String, String, String) id, targetContextIDs, targetProperties, messageTemplate Initializes a new instance of the RuleCombinationOfPropertiesIsUniqueAttribute class. RuleCombinationOfPropertiesIsUniqueAttribute(String, String, String) id, targetContextIDs, targetProperties Initializes a new instance of the RuleCombinationOfPropertiesIsUniqueAttribute class. RuleCombinationOfPropertiesIsUniqueAttribute(String) targetProperties Initializes a new instance of the RuleCombinationOfPropertiesIsUniqueAttribute class. See Also RuleCombinationOfPropertiesIsUniqueAttribute Class RuleCombinationOfPropertiesIsUniqueAttribute Members DevExpress.Persistent.Validation Namespace