IDataCollectionItemPlacer.NotifyCollectionDataChanged Method
Definition
Important
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Notification that the collection being managed by the data consumer for this object has changed.
public void NotifyCollectionDataChanged(MixedReality.Toolkit.Data.DataChangeType dataChangeType, string localKeypath, object value);
abstract member NotifyCollectionDataChanged : MixedReality.Toolkit.Data.DataChangeType * string * obj -> unit
Public Sub NotifyCollectionDataChanged (dataChangeType As DataChangeType, localKeypath As String, value As Object)
Parameters
- dataChangeType
- DataChangeType
The nature of the data change, typically CollectionItemAdded, or CollectionItemRemoved.
- localKeypath
- String
The keypath of the collection.
- value
- Object
A value relevant to the type of change. For a collection item change, this is the index of the item.
Remarks
This method will typically trigger a IDataConsumer.RequestCollectionItems() method call to request all or a subset of the items being managed in the collection. This back and forth allows for precise control of paging and virtualization to optimize the presentation of information.