CollectionChange Enum
Definition
Important
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Describes the action that causes a change to a collection.
public enum class CollectionChange/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.FoundationContract, 65536)]
enum class CollectionChange[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.FoundationContract), 65536)]
public enum CollectionChangevar value = Windows.Foundation.Collections.CollectionChange.resetPublic Enum CollectionChange- Inheritance
-
CollectionChange
- Attributes
Windows requirements
| Device family |
Windows 10 (introduced in 10.0.10240.0)
|
| API contract |
Windows.Foundation.FoundationContract (introduced in v1.0)
|
Fields
| Name | Value | Description |
|---|---|---|
| Reset | 0 | The collection is changed. |
| ItemInserted | 1 | An item is added to the collection. |
| ItemRemoved | 2 | An item is removed from the collection. |
| ItemChanged | 3 | An item is changed in the collection. |
Remarks
There is only one notification per type of change to a collection. For example, if an item is inserted, then only a notification for an insertion is sent to a listener that is subscribed to receive change notifications. Use the Index property of the IVectorChangedEventArgs interface or the Key property of the IMapChangedEventArgs<K> interface to determine the location of the change.