General Information
.NET Subscription
Desktop
Web
Controls and Extensions
Mainteinance Mode
Enterprise and Analytic Tools
Quality Assurance and Productivity
Frameworks and Libraries
XPQueryExtensions.LastAsync<T>(IQueryable<T>, Expression<Func<T, Boolean>>, CancellationToken) Method
Asynchronously gets the last object that meets specified requirements in a selection. Throws an exception for empty selections.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v19.2.dll
Declaration
public static Task<T> LastAsync<T>(
this IQueryable<T> query,
Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default(CancellationToken)
)<ExtensionAttribute>
Public Shared Function LastAsync(Of T)(
query As IQueryable(Of T),
predicate As Expression(Of Func(Of T, Boolean)),
cancellationToken As CancellationToken = Nothing
) As Task(Of T)public static Task<T> LastAsync<T>(
this IQueryable<T> query,
Expression<Func<T, bool>> predicate,
CancellationToken cancellationToken = default(CancellationToken)
)<ExtensionAttribute>
Public Shared Function LastAsync(Of T)(
query As IQueryable(Of T),
predicate As Expression(Of Func(Of T, Boolean)),
cancellationToken As CancellationToken = Nothing
) As Task(Of T)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 the persistent object needs to meet. |
| 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. |
| predicate | Expression<Func<T, Boolean>> | An expression which determines requirements the persistent object needs to meet. |
| cancellationToken | CancellationToken | A CancellationToken object that delivers a cancellation notice to the running operation. |
Returns
| Type | Description |
|---|---|
| Task<T> | A Task that returns the last object to meet specified requirements in a selection. |
Returns
| Type | Description |
|---|---|
| Task<T> | A Task that returns the last object to meet specified requirements in a selection. |
Type Parameters
| Name | Description |
|---|---|
| T |
Type Parameters
| Name | Description |
|---|---|
| T |