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.NET Framework 4.5.2+
.NET Standard 2.0+

XPQueryExtensions.LongCountAsync<T>(IQueryable<T>, CancellationToken) Method

Asynchronously counts the number of objects in a selection.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v19.2.dll

Declaration

public static Task<long> LongCountAsync<T>(
    this IQueryable<T> query,
    CancellationToken cancellationToken = default(CancellationToken)
)
<ExtensionAttribute>
Public Shared Function LongCountAsync(Of T)(
    query As IQueryable(Of T),
    cancellationToken As CancellationToken = Nothing
) As Task(Of Long)
public static Task<long> LongCountAsync<T>(
    this IQueryable<T> query,
    CancellationToken cancellationToken = default(CancellationToken)
)
<ExtensionAttribute>
Public Shared Function LongCountAsync(Of T)(
    query As IQueryable(Of T),
    cancellationToken As CancellationToken = Nothing
) As Task(Of Long)

Parameters

Name Type Description
query IQueryable<T>

An XPQuery<T> that specifies a selection of persistent objects.

cancellationToken CancellationToken

A CancellationToken object that delivers a cancellation notice to the running operation.

Parameters

Name Type Description
query IQueryable<T>

An XPQuery<T> that specifies a selection of persistent objects.

cancellationToken CancellationToken

A CancellationToken object that delivers a cancellation notice to the running operation.

Returns

Type Description
Task<Int64>

An Task that returns an Int64 value. This value demonstrates how many objects a selection contains.

Returns

Type Description
Task<Int64>

An Task that returns an Int64 value. This value demonstrates how many objects a selection contains.

Type Parameters

Name Description
T

Type Parameters

Name Description
T
See Also