IXRList::IndexOf (Compact 7)

3/12/2014

This method searches for the specified item and retrieves the zero-based index of its occurrence within the IXRList collection.

Syntax

virtual HRESULT STDMETHODCALLTYPE IndexOf(
    __in XRValue * pValue, 
    __out int *pIndex
) = 0;

Parameters

• pValue
  [in] Pointer to an XRValue object that represents an item to locate in this collection.

• pIndex
  [out] Pointer to an integer value that indicates the zero-based index of the last occurrence of pValue within this collection.

Return Value

Returns S_OK if successful; otherwise, returns an HRESULT error code. For common error codes for Silverlight for Windows Embedded, see Silverlight for Windows Embedded Error Messages.

Remarks

This method performs a linear search through the collection. Therefore, the average execution time is proportional to the number of items.

By default, this method searches the collection starting at the last item, and ending at the first item. Because an object cannot exist more than once in a visual tree, an item can occur only once in this object collection.

To use a specific interface pointer type, use the helper template version of this method provided by Silverlight for Windows Embedded. When you supply a derived type, this version automatically supplies a type-safe method that implicitly converts the returned type from a generic interface, so you do not have to explicitly call QueryInterface to convert the generic interface into the required object type.

.NET Framework Equivalent

System.Windows.PresentationFrameworkCollection(T).IList.IndexOf

Requirements

See Also

Reference

IXRList