SchedulerDataStorage.AppointmentDependencyCollectionAutoReloading Event
Occurs when the data source which contains appointment dependency records is modified and dependencies are set to be automatically reloaded.
Namespace: DevExpress.XtraScheduler
Assembly: DevExpress.XtraScheduler.v23.2.dll
NuGet Package: DevExpress.Win.Scheduler
Declaration
Event Data
The AppointmentDependencyCollectionAutoReloading event's data class is CancelListChangedEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Cancel | Gets or sets whether the operation performed on the processed event should be canceled. |
| ListChangedType | Gets the type of change. Inherited from ListChangedEventArgs. |
| NewIndex | Gets the index of the item affected by the change. Inherited from ListChangedEventArgs. |
| OldIndex | Gets the old index of an item that has been moved. Inherited from ListChangedEventArgs. |
| PropertyDescriptor | Gets the PropertyDescriptor that was added, changed, or deleted. Inherited from ListChangedEventArgs. |
Remarks
In bound mode, the SchedulerDataStorage object is bound to a data source which contains appointment dependency records. This data source is specified by the DataMember and DataSource properties of the SchedulerDataStorage.AppointmentDependencies object.
When the PersistentObjectStorage<T>.AutoReload property of the AppointmentDependencyStorage object is set to true data are automatically reloaded. In this case, the SchedulerDataStorage object reloads data from the data source each time an item in the data source is modified, added, moved or removed, a column is added, modified or deleted or multiple changes are made to the data source. The AppointmentDependencyCollectionAutoReloading event allows you to prevent data from being reloaded in specific cases. Use the event’s ListChangedType parameter to get the cause of the data source changes. To prevent data from being reloaded in a specific case, set the CancelListChangedEventArgs.Cancel parameter to true. Otherwise, the SchedulerDataStorage object will reload data from the data source immediately after the event handler is completed.
The AppointmentDependencyCollectionAutoReloading event doesn’t fire in unbound mode and in bound mode if the PersistentObjectStorage<T>.AutoReload property is set to false.