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

Retrieves object data from a session asynchronously, according to specified query parameters.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v24.2.dll

Declaration

C#

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

VB.NET

Public Function SelectDataAsync(
    classInfo As XPClassInfo,
    properties As CriteriaOperatorCollection,
    criteria As CriteriaOperator,
    groupProperties As CriteriaOperatorCollection,
    groupCriteria As CriteriaOperator,
    selectDeleted As Boolean,
    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.
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 data store.

Remarks

This method is intended for internal use. To get objects from a session, use the XPCollection and XPView components or the XPQuery<T>.