_XRValueCollectionBaseT.GetIsReadOnly(bool *) (Compact 7)
3/12/2014
This method indicates whether you can add, remove, or modify XRValue objects in the collection.
Syntax
HRESULT STDMETHODCALLTYPE GetIsReadOnly(
bool * pIsReadOnly)
Parameters
- pIsReadOnly
[out] A Boolean value that is false if you can add, remove, or modify XRValue objects in the collection. Otherwise, pIsReadOnly is true.
Return Value
The following table shows the possible return values.
| Value | Description |
|---|---|
S_OK |
The method succeeded. |
E_POINTER |
The pIsReadOnly parameter is not valid. |
Remarks
By default, _XRValueCollectionBaseT.GetIsReadOnly always returns false.
An application can call GetIsReadOnly on a derived class to test whether a collection is read-only. To implement a derived collection class whose items applications cannot update, you can override methods such as _XRValueCollectionBaseT.Add(XRValue *) and _XRValueCollectionBaseT.Remove(XRValue *) to always return S_FALSE, and override the GetIsReadOnly method to return true.
Requirements
Header |
XRCollection.h |
See Also
Reference
_XRValueCollectionBaseT<IFace,ItemType,ItemComparer,ItemConverter,ItemLifeManager>
_XRValueCollectionBaseT.Clear
_XRValueCollectionBaseT.RemoveAt(int)
_XRValueCollectionBaseT.Insert(int,XRValue *)