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FlattenExtensionFlatten Method (IEnumerable, FuncIEnumerable, Boolean)

FlattenExtensionFlatten Method (IEnumerable, FuncIEnumerable, Boolean)

Flattens a sequence containing arbitrarily-nested sequences. An additional parameter specifies a predicate function used to determine whether a nested

IEnumerable

should be flattened or not.

Namespace:  MoreLinq.Extensions
Assembly:

MoreLinq (in MoreLinq.dll) Version: 3.0.0

Syntax
public static IEnumerable<Object> Flatten(
	this IEnumerable source,
	Func<IEnumerable, bool> predicate
)
<ExtensionAttribute>
Public Shared Function Flatten ( 
	source As IEnumerable,
	predicate As Func(Of IEnumerable, Boolean)
) As IEnumerable(Of Object)
public:
[ExtensionAttribute]
static IEnumerable<Object^>^ Flatten(
	IEnumerable^ source, 
	Func<IEnumerable^, bool>^ predicate
)
[<ExtensionAttribute>]
static member Flatten : 
        source : IEnumerable * 
        predicate : Func<IEnumerable, bool> -> IEnumerable<Object> 
Parameters
source
Type: System.CollectionsIEnumerable
The sequence that will be flattened.
predicate
Type: SystemFuncIEnumerable, Boolean
A function that receives each element that implements IEnumerable and indicates if its elements should be recursively flattened into the resulting sequence.
Return Value

Type:

IEnumerableObject

A sequence that contains the elements of

source

and all nested sequences for which the predicate function returned

true

.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type

IEnumerable

. 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)

.

Exceptions See Also

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