XEnumerableFlattenTNode, TResult Method (IEnumerableTNode, FuncTNode, IEnumerableTNode, TreeTraversalMode, FuncTNode, Int32, TResult) |
Returns a flattened sequence from a graph or hierarchy of elements, using the specified children selector,
and in the specified traversal order.
Namespace:
Linq.Extras
Assembly:
Linq.Extras (in Linq.Extras.dll) Version: 5.0.0+96a4f4bfed64095342c5df107c1fe1fb95603ee5
Syntaxpublic static IEnumerable<TResult> Flatten<TNode, TResult>(
this IEnumerable<TNode> source,
Func<TNode, IEnumerable<TNode>> childrenSelector,
TreeTraversalMode traversalMode,
Func<TNode, int, TResult> resultSelector
)
<ExtensionAttribute>
Public Shared Function Flatten(Of TNode, TResult) (
source As IEnumerable(Of TNode),
childrenSelector As Func(Of TNode, IEnumerable(Of TNode)),
traversalMode As TreeTraversalMode,
resultSelector As Func(Of TNode, Integer, TResult)
) As IEnumerable(Of TResult)
[<ExtensionAttribute>]
static member Flatten :
source : IEnumerable<'TNode> *
childrenSelector : Func<'TNode, IEnumerable<'TNode>> *
traversalMode : TreeTraversalMode *
resultSelector : Func<'TNode, int, 'TResult> -> IEnumerable<'TResult>
Parameters
- source
- Type: System.Collections.GenericIEnumerableTNode
The source hierarchy to flatten. - childrenSelector
- Type: SystemFuncTNode, IEnumerableTNode
The delegate used to retrieve the children of an element. - traversalMode
- Type: Linq.ExtrasTreeTraversalMode
The traversal order. - resultSelector
- Type: SystemFuncTNode, Int32, TResult
The delegate used to project each node of the hierarchy to a result element. It accepts the node and its level as paramaters.
Type Parameters
- TNode
- The type of the elements in the source hierarchy.
- TResult
- The type of the elements in the output sequence.
Return Value
Type:
IEnumerableTResultA flat sequence of elements produced from the elements in the source hierarchy.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableTNode. 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