XPQueryExtensions.LongCountAsync<T>(IQueryable<T>, Expression<Func<T, Boolean>>, CancellationToken) Method
Asynchronously counts the number of objects that meet specific requirements in a specified selection.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v24.2.dll
Declaration
Parameters
Name | Type | Description |
---|---|---|
query | IQueryable<T> | An XPQuery<T> that specifies a selection of persistent objects. |
predicate | Expression<Func<T, Boolean>> | An expression which determines requirements persistent objects need to meet. |
Optional Parameters
Name | Type | Default | Description |
---|---|---|---|
cancellationToken | CancellationToken | null | A CancellationToken object that delivers a cancellation notice to the running operation. |
Type Parameters
Name |
---|
T |
Returns
Type | Description |
---|---|
Task<Int64> | An Task that returns an Int64 value. This value demonstrates how many objects in a selection meet specific requirements. |
See Also