Session.FindObjectAsync<ClassType>(PersistentCriteriaEvaluationBehavior, CriteriaOperator, CancellationToken) Method
Asynchronously searches for the first object that matches the specified criteria. This object’s type is designated by the specified generic parameter.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v18.2.dll
Declaration
public Task<ClassType> FindObjectAsync<ClassType>(
PersistentCriteriaEvaluationBehavior criteriaEvaluationBehavior,
CriteriaOperator criteria,
CancellationToken cancellationToken = default(CancellationToken)
)
Parameters
Name | Type | Description |
---|---|---|
criteriaEvaluationBehavior | PersistentCriteriaEvaluationBehavior | A PersistentCriteriaEvaluationBehavior enumeration value that specifies how the persistent criteria is evaluated. |
criteria | CriteriaOperator | A CriteriaOperator descendant which represents the criteria the persistent object must match. |
Optional Parameters
Name | Type | Default | Description |
---|---|---|---|
cancellationToken | CancellationToken | *null* | A CancellationToken object that delivers a cancellation notice to the running operation. |
Type Parameters
Name |
---|
ClassType |
Returns
Type | Description |
---|---|
Task<ClassType> | A Task that returns an object. This object represents the first persistent object that matches the specified criteria. null (Nothing in Visual Basic) if no persistent object is found that matches the criteria. |
Remarks
Persistent objects that are marked as deleted in the database (see Deferred and Immediate Object Deletion) are not included in the search.