expressappframework-devexpress-dot-persistent-dot-validation-dot-ruleset-2ef6eb88.md
Occurs when a rule is being validated.
Namespace : DevExpress.Persistent.Validation
Assembly : DevExpress.Persistent.Base.v25.2.dll
NuGet Package : DevExpress.Persistent.Base
public static event EventHandler<CustomValidateRuleEventArgs> CustomValidateRule
Public Shared Event CustomValidateRule As EventHandler(Of CustomValidateRuleEventArgs)
The CustomValidateRule event's data class is CustomValidateRuleEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| ObjectSpace | An Object Space of a validation target. |
| Rule | A rule to be checked on a CustomValidateRuleEventArgs.Target. |
| RuleValidationResult | The result of checking the CustomValidateRuleEventArgs.Rule on the CustomValidateRuleEventArgs.Target. |
| Target | An object on which to check the CustomValidateRuleEventArgs.Rule. |
Handle this event to customize a rule before it is validated or perform a validation manually.
Note
You cannot use this event in a .NET application. Refer to the following section for more information: How to Subscribe to Validation Events
See Also