ObjectContext::RefreshAsync Method
Asynchronously refreshes cache data with store data for specific entities.
Assembly: EntityFramework (in EntityFramework.dll)
| Name | Description | |
|---|---|---|
 | RefreshAsync(RefreshMode, IEnumerable^) | Asynchronously updates a collection of objects in the object context with data from the database. |
| RefreshAsync(RefreshMode, IEnumerable^, CancellationToken) | Asynchronously updates a collection of objects in the object context with data from the database. |
| RefreshAsync(RefreshMode, Object^) | Asynchronously updates an object in the object context with data from the database. |
| RefreshAsync(RefreshMode, Object^, CancellationToken) | Asynchronously updates an object in the object context with data from the database. |
ObjectContext::RefreshAsync Method (RefreshMode, IEnumerable^)
Asynchronously updates a collection of objects in the object context with data from the database.
Parameters
- refreshMode
-
Type:
System.Data.Entity.Core.Objects::RefreshMode
A RefreshMode value that indicates whether property changes in the object context are overwritten with property values from the database.
- collection
-
Type:
System.Collections::IEnumerable^
An IEnumerable collection of objects to refresh.
| Exception | Condition |
|---|---|
| ArgumentNullException | collection is null. |
| ArgumentOutOfRangeException | refreshMode is not valid. |
| ArgumentException | collection is empty or an object is not attached to the context. |
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
ObjectContext::RefreshAsync Method (RefreshMode, IEnumerable^, CancellationToken)
Asynchronously updates a collection of objects in the object context with data from the database.
public: virtual Task^ RefreshAsync( RefreshMode refreshMode, IEnumerable^ collection, CancellationToken cancellationToken )
Parameters
- refreshMode
-
Type:
System.Data.Entity.Core.Objects::RefreshMode
A RefreshMode value that indicates whether property changes in the object context are overwritten with property values from the database.
- collection
-
Type:
System.Collections::IEnumerable^
An IEnumerable collection of objects to refresh.
- cancellationToken
-
Type:
System.Threading::CancellationToken
A CancellationToken to observe while waiting for the task to complete.
| Exception | Condition |
|---|---|
| ArgumentNullException | collection is null. |
| ArgumentOutOfRangeException | refreshMode is not valid. |
| ArgumentException | collection is empty or an object is not attached to the context. |
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
ObjectContext::RefreshAsync Method (RefreshMode, Object^)
Asynchronously updates an object in the object context with data from the database.
Parameters
- refreshMode
-
Type:
System.Data.Entity.Core.Objects::RefreshMode
A RefreshMode value that indicates whether property changes in the object context are overwritten with property values from the database.
- entity
-
Type:
System::Object^
The object to be refreshed.
| Exception | Condition |
|---|---|
| ArgumentNullException | entity is null. |
| ArgumentOutOfRangeException | refreshMode is not valid. |
| ArgumentException | entity is not attached to the context. |
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
ObjectContext::RefreshAsync Method (RefreshMode, Object^, CancellationToken)
Asynchronously updates an object in the object context with data from the database.
public: virtual Task^ RefreshAsync( RefreshMode refreshMode, Object^ entity, CancellationToken cancellationToken )
Parameters
- refreshMode
-
Type:
System.Data.Entity.Core.Objects::RefreshMode
A RefreshMode value that indicates whether property changes in the object context are overwritten with property values from the database.
- entity
-
Type:
System::Object^
The object to be refreshed.
- cancellationToken
-
Type:
System.Threading::CancellationToken
A CancellationToken to observe while waiting for the task to complete.
| Exception | Condition |
|---|---|
| ArgumentNullException | entity is null. |
| ArgumentOutOfRangeException | refreshMode is not valid. |
| ArgumentException | entity is not attached to the context. |
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.