Session.SelectDataInTransactionAsync(XPClassInfo, CriteriaOperatorCollection, CriteriaOperator, CriteriaOperatorCollection, CriteriaOperator, Boolean, Int32, Int32, SortingCollection, CancellationToken) Method

Asynchronously retrieves objects from a session, according to specified query parameters. Accounts for all in-memory object changes.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v19.2.dll

Declaration

C#

public Task<List<object[]>> SelectDataInTransactionAsync(
    XPClassInfo classInfo,
    CriteriaOperatorCollection properties,
    CriteriaOperator criteria,
    CriteriaOperatorCollection groupProperties,
    CriteriaOperator groupCriteria,
    bool selectDeleted,
    int skipSelectedRecords,
    int topSelectedRecords,
    SortingCollection sorting,
    CancellationToken cancellationToken = default(CancellationToken)
)

VB.NET

Public Function SelectDataInTransactionAsync(
    classInfo As XPClassInfo,
    properties As CriteriaOperatorCollection,
    criteria As CriteriaOperator,
    groupProperties As CriteriaOperatorCollection,
    groupCriteria As CriteriaOperator,
    selectDeleted As Boolean,
    skipSelectedRecords As Integer,
    topSelectedRecords As Integer,
    sorting As SortingCollection,
    cancellationToken As CancellationToken = Nothing
) As Task(Of List(Of Object()))

Parameters

Name	Type	Description
classInfo	XPClassInfo	An XPClassInfo object that contains metadata information. This data specifies which objects need to be retrieved.
properties	CriteriaOperatorCollection	A CriteriaOperatorCollection object which specifies object properties to be retrieved.
criteria	CriteriaOperator	A CriteriaOperator descendant which specifies the objects 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.
selectDeleted	Boolean	A Boolean value that specifies whether the objects marked as deleted must be retrieved.
skipSelectedRecords	Int32	An integer value which specifies the number of objects to exclude when populating the list.
topSelectedRecords	Int32	An integer value which specifies the maximum number of objects to be retrieved.
sorting	SortingCollection	A SortingCollection object that specifies the sort order for the list of 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 represent object properties retrieved from a session.

Remarks

This method is intended for internal use. To include in-memory changes into query results, get objects from a session using the XPCollection and XPView components with the Session.InTransactionMode enabled.