XRObservableCollection.OnCollectionChanged(XRCollectionChangedCustomEventArgs *) (Compact 7)
3/12/2014
This protected method raises the CollectionChanged event for the data source collection.
Syntax
HRESULT STDMETHODCALLTYPE OnCollectionChanged(
XRCollectionChangedCustomEventArgs * pArgs)
Parameters
- pArgs
[in] Pointer to an XRCollectionChangedCustomEventArgs that contains information about which items have changed and whether you added, removed, replaced, moved, or reset the collection.
Return Value
The following table shows the possible return values.
| Value | Description |
|---|---|
S_OK |
The method was successful. |
E_INVALIDARG |
The object sender is not valid. |
Remarks
Call this method after you update the data source collection to invoke any event handlers that provide custom handling for the CollectionChanged event.
Because XRObservableCollection.OnCollectionChanged is a protected member, an instance of XRObservableCollection<ItemType> cannot directly access the XRObservableCollection.OnCollectionChanged method.
If you derive a new class from XRObservableCollection<ItemType> that uses either public or protected access modifiers, you can override this method in the new class.
Requirements
Header |
XRCollection.h, |