Version: Available or changed with runtime version 1.0.
Recall a sent notification.
[Ok := ] Notification.Recall()
true if it succeeds in sending a recall request to the client; otherwise false. The same notification can be recalled more than once, without failing. Also, a notification can be recalled successfully even if it hasn't been sent. If you omit this optional return value and the operation does not execute successfully, a runtime error will occur.
A typical reason that the RECALL method returns false is a failure in the communication with the client. Another reason could be that the code tries to recall a notification for which there is no instance.
The following code creates a notification and sends it if NewBalance is greater than the credit limit. If it is lower than the credit limit, it recalls the notification.
MyNotification.ID := '00000000-0000-0000-0000-000000000001'; IF NewBalance > Rec. "Credit Limit" then begin MyNotification.Message := 'The customer''s current balance exceeds their credit limit.'; MyNotification.Scope := NotificationScope::LocalScope; MyNotification.AddAction('Fix it.', 50001, 'FixCustomerCreditLimit'); MyNotification.SetData('CustomerNo.', Rec."No."); MyNotification.Send; end else MyNotification.Recall;