SimpleObjectLayer.SelectDataAsync(Session, ObjectsQuery, CriteriaOperatorCollection, CriteriaOperatorCollection, CriteriaOperator, CancellationToken) Method
Retrieves object data from a session asynchronously, according to specified query parameters.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v18.2.dll
Declaration
public Task<List<object[]>> SelectDataAsync(
Session session,
ObjectsQuery query,
CriteriaOperatorCollection properties,
CriteriaOperatorCollection groupProperties,
CriteriaOperator groupCriteria,
CancellationToken cancellationToken = default(CancellationToken)
)
Parameters
Name | Type | Description |
---|---|---|
session | Session | A Session that is used to retrieved persistent objects. |
query | ObjectsQuery | An array of ObjectsQuery objects that specifies queries executed to select data. |
properties | CriteriaOperatorCollection | A CriteriaOperatorCollection object which specifies object properties to be retrieved. |
groupProperties | CriteriaOperatorCollection | A CriteriaOperatorCollection object which specifies the grouping properties. |
groupCriteria | CriteriaOperator | A CriteriaOperator descendant which specifies the grouping criteria for the retrieved objects. |
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<List<Object[]>> | A Task that returns a list of object arrays. These object arrays match specified query parameters. |
See Also