PersistenceProvider::Update Method (Object^, TimeSpan)

 

When implemented in a derived class, updates service state records in the persistence store.

Namespace:   System.ServiceModel.Persistence
Assembly:  System.WorkflowServices (in System.WorkflowServices.dll)

public:
virtual Object^ Update(
	Object^ instance,
	TimeSpan timeout
) abstract

Parameters

instance
Type: System::Object^

The actual instance state.

timeout
Type: System::TimeSpan

The time period after which the persistence provider aborts this attempt.

Return Value

Type: System::Object^

The instance token corresponding to the state just saved. This can be passed to LoadIfChanged to determine whether the state in the persistence store differs from the state when Create was called.

The following code demonstrates how to implement the Update method.

public override object Update(object instance, TimeSpan timeout)
{
    base.ThrowIfDisposedOrNotOpen();
    this.factory.Update(this.Id, instance, timeout);
    return null;
}

.NET Framework
Available since 3.5
Return to top
Show: