PersistenceValidationController.ContextValidating Event

Occurs when validation rules associated with the Delete or Save validation contexts are about to be checked.

Namespace: DevExpress.ExpressApp.Validation

Assembly: DevExpress.ExpressApp.Validation.v24.1.dll

NuGet Package: DevExpress.ExpressApp.Validation

Declaration

C#

public event EventHandler<ContextValidatingEventArgs> ContextValidating

VB.NET

Public Event ContextValidating As EventHandler(Of ContextValidatingEventArgs)

Event Data

The ContextValidating event's data class is ContextValidatingEventArgs. The following properties provide information specific to this event:

Property	Description
Context	Specifies the validation context whose associated validation rules are about to be checked.
TargetObjects	Specifies the objects that are about to be validated in the validation context specified by the ContextValidatingEventArgs.Context property.

Remarks

Handle this event to modify the collection of objects which will be validated in the current context. Check the current validation context using the Context property and add the required objects to the TargetObjects list.

See the example of using the ContextValidating event in the PersistenceValidationController class description.