MoreEnumerablePartitionT, TResult Method (IEnumerableT, FuncT, Boolean, FuncIEnumerableT, IEnumerableT, TResult) |
Partitions or splits a sequence in two using a predicate and then
projects a result from the two.
Namespace:
MoreLinq
Assembly:
MoreLinq (in MoreLinq.dll) Version: 2.4.0
Syntax public static TResult Partition<T, TResult>(
this IEnumerable<T> source,
Func<T, bool> predicate,
Func<IEnumerable<T>, IEnumerable<T>, TResult> resultSelector
)
<ExtensionAttribute>
Public Shared Function Partition(Of T, TResult) (
source As IEnumerable(Of T),
predicate As Func(Of T, Boolean),
resultSelector As Func(Of IEnumerable(Of T), IEnumerable(Of T), TResult)
) As TResult
public:
[ExtensionAttribute]
generic<typename T, typename TResult>
static TResult Partition(
IEnumerable<T>^ source,
Func<T, bool>^ predicate,
Func<IEnumerable<T>^, IEnumerable<T>^, TResult>^ resultSelector
)
[<ExtensionAttribute>]
static member Partition :
source : IEnumerable<'T> *
predicate : Func<'T, bool> *
resultSelector : Func<IEnumerable<'T>, IEnumerable<'T>, 'TResult> -> 'TResult
Parameters
- source
- Type: System.Collections.GenericIEnumerableT
The source sequence. - predicate
- Type: SystemFuncT, Boolean
The predicate function. - resultSelector
- Type: SystemFuncIEnumerableT, IEnumerableT, TResult
Function that projects the result from sequences of elements that
satisfy the predicate and those that do not, respectively, passed as
arguments.
Type Parameters
- T
- Type of source elements.
- TResult
- Type of the result.
Return Value
Type:
TResult
The return value from
resultSelector.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableT. 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).
Examples var (evens, odds) =
Enumerable.Range(0, 10)
.Partition(x => x % 2 == 0, ValueTuple.Create);
The
evens variable, when iterated over, will yield 0, 2, 4, 6
and then 8. The
odds variable, when iterated over, will yield
1, 3, 5, 7 and then 9.
See Also