Session.FindObjectAsync(PersistentCriteriaEvaluationBehavior, Type, CriteriaOperator, CancellationToken) Method
Asynchronously searches for the first object that matches the specified criteria.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v18.2.dll
Declaration
public Task<object> FindObjectAsync(
PersistentCriteriaEvaluationBehavior criteriaEvaluationBehavior,
Type objType,
CriteriaOperator criteria,
CancellationToken cancellationToken = default(CancellationToken)
)Parameters
| Name | Type | Description |
|---|---|---|
| criteriaEvaluationBehavior | PersistentCriteriaEvaluationBehavior | A PersistentCriteriaEvaluationBehavior enumeration value that specifies how the persistent criteria is evaluated. |
| objType | Type | A Type object which represents the type of objects to search for. |
| 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. |
Returns
| Type | Description |
|---|---|
| Task<Object> | 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.