PersistentObjectCancelEventHandler Delegate

Represents a method that will handle the persistent object events of the SchedulerStorage that have a cancel option.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v18.1.Core.dll

Declaration

C#

public delegate void PersistentObjectCancelEventHandler(
    object sender,
    PersistentObjectCancelEventArgs e
);

VB.NET

Public Delegate Sub PersistentObjectCancelEventHandler(
    sender As Object,
    e As PersistentObjectCancelEventArgs
)

Parameters

Name	Type	Description
sender	Object	The event source. This parameter identifies the SchedulerStorage which raised the event.
e	PersistentObjectCancelEventArgs	A PersistentObjectCancelEventArgs object which contains event data.

Remarks

When creating a PersistentObjectCancelEventHandler delegate, you identify the method that will handle the corresponding event. To associate an event with your event handler, add a delegate instance to this event. The event handler is called whenever the event occurs unless you remove the delegate. For more information about event handler delegates, see Events and Delegates in MSDN.

The event handler of this class is used for the following persistent object events:

Appointments:

• SchedulerStorageBase.AppointmentInserting
• SchedulerStorageBase.AppointmentDeleting
• SchedulerStorageBase.AppointmentChanging

Resources:

• SchedulerStorageBase.ResourceInserting
• SchedulerStorageBase.ResourceDeleting
• SchedulerStorageBase.ResourceChanging

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the PersistentObjectCancelEventHandler delegate.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-split-appointments-into-groups-e3792/CS/MainWindow.xaml.cs#L19

Storage.AppointmentChanging += new PersistentObjectCancelEventHandler(Storage_AppointmentChanging);
Storage.AppointmentDeleting += new PersistentObjectCancelEventHandler(Storage_AppointmentDeleting);

how-to-get-xtrascheduler-synchronized-with-xtragrid-e792/CS/Form1.cs#L159

this.schedulerDataStorage1.Appointments.Mappings.Subject = "Subject";
this.schedulerDataStorage1.FilterAppointment += new DevExpress.XtraScheduler.PersistentObjectCancelEventHandler(this.schedulerDataStorage1_FilterAppointment);
this.schedulerDataStorage1.AppointmentCollectionCleared += new System.EventHandler(this.schedulerDataStorage1_AppointmentCollectionCleared);

how-to-generate-multi-resource-appointments-at-runtime-t132836/CS/WindowsFormsApplication1/Form1.cs#L24

schedulerControl1.Start = DateTime.Now;
schedulerStorage1.AppointmentDeleting += new PersistentObjectCancelEventHandler(schedulerStorage1_AppointmentDeleting);
schedulerControl1.GroupType = DevExpress.XtraScheduler.SchedulerGroupType.Resource;