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Given a non-generic IList interface, wrap a generic IList<T>
interface around it. The generic interface will enumerate the same objects as the
underlying non-generic list, but can be used in places that require a generic interface.
The underlying non-generic list must contain only items that
are of type T or a type derived from it. This method is useful
when interfacing older, non-generic lists to newer code that uses generic interfaces.
Namespace: Wintellect.PowerCollections
Assembly:
PowerCollections (in PowerCollections.dll)
Syntax
| C# |
|---|
public static IList<T> TypedAs<T>( IList untypedList ) |
| Visual Basic (Declaration) |
|---|
Public Shared Function TypedAs(Of T) ( _ untypedList As IList _ ) As IList(Of T) |
| Visual C++ |
|---|
public: generic<typename T> static IList<T>^ TypedAs ( IList^ untypedList ) |
Parameters
- untypedList
- IList
An untyped list. This list should only contain items of type T or a type derived from it.
Return Value
A generic IList<T> wrapper around untypedList. If untypedList is null, then null is returned.Type Parameters
- T
- The item type of the wrapper list.
Remarks
Some collections implement both generic and non-generic interfaces. For efficiency,
this method will first attempt to cast untypedList to IList<T>.
If that succeeds, it is returned; otherwise, a wrapper object is created.
See Also
Algorithms Class
Wintellect.PowerCollections Namespace
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