| EnumerableExExpandTSource Method | 
            Expands the sequence by recursively applying a selector function.
            
 
Namespace: System.LinqAssembly: System.Interactive (in System.Interactive.dll) Version: 1.2.0.0
 Syntax
Syntaxpublic static IEnumerable<TSource> Expand<TSource>(
	this IEnumerable<TSource> source,
	Func<TSource, IEnumerable<TSource>> selector
)
Parameters
- source
- Type: System.Collections.GenericIEnumerableTSource
 Source sequence.
- selector
- Type: SystemFuncTSource, IEnumerableTSource
 Selector function to retrieve the next sequence to expand.
Type Parameters
- TSource
- Source sequence element type.
Return Value
Type: 
IEnumerableTSourceSequence with results from the recursive expansion of the source sequence.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type 
IEnumerableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see 
Extension Methods (Visual Basic) or 
Extension Methods (C# Programming Guide).
 See Also
See Also