RuleUniqueValueAttribute.CriteriaEvaluationBehavior Property

Specifies whether to look for objects that are currently retrieved from the database, in addition to the objects in the database itself.

Namespace: DevExpress.Persistent.Validation

Assembly: DevExpress.Persistent.Base.v26.1.dll

Declaration

C#

public CriteriaEvaluationBehavior CriteriaEvaluationBehavior { get; set; }

VB.NET

Public Property CriteriaEvaluationBehavior As CriteriaEvaluationBehavior

Property Value

Type	Default	Description
CriteriaEvaluationBehavior	InTransaction	A CriteriaEvaluationBehavior enumeration value representing the behavior for searching for the required objects.

Available values:

Name	Description
BeforeTransaction	Only objects in the database are considered.
InTransaction	Objects in the database and those that are currently retrieved from it are considered.

Remarks

When defining the RuleUniqueValueAttribute in code, the value for the CriteriaEvaluationBehavior property is passed as a named parameter. This means that you do not have to specify it. However, when specifying the parameter, use the following format: CriteriaEvaluationBehavior = CriteriaEvaluationBehavior.InTransaction.