Class EnumerableExtensions

.NET Specific Helper Extensions for IEnumerable

Inheritance
System.Object
EnumerableExtensions
Namespace: Lucene.Net.Support
Assembly: Lucene.Net.dll
Syntax
public static class EnumerableExtensions : object

Methods

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InPairs<T, TOut>(IEnumerable<T>, Func<T, T, TOut>)

Enumerates a sequence in pairs

Declaration
public static IEnumerable<TOut> InPairs<T, TOut>(this IEnumerable<T> source, Func<T, T, TOut> join)
Parameters
Type Name Description
IEnumerable<T> source

An System.Collections.Generic.IEnumerable<> to enumerate in pairs.
Func<T, T, TOut> join

A function that is invoked for each pair of elements.
Returns
Type Description
IEnumerable<TOut>

A new System.Collections.Generic.IEnumerable<> containing the results from each pair.
Type Parameters
Name Description
T

The type of the elements of source.
TOut

The type of the elements returned from join.
Remarks

In the case of an uneven amount of elements, the list call to join pases 

default(T)
as the second parameter.

Exceptions
Type Condition
System.ArgumentNullException

source or join is null.
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TakeAllButLast<T>(IEnumerable<T>)

Take all but the last element of the sequence.

Declaration
public static IEnumerable<T> TakeAllButLast<T>(this IEnumerable<T> source)
Parameters
Type Name Description
IEnumerable<T> source

This .
Returns
Type Description
IEnumerable<T>

The resulting .
Type Parameters
Name Description
T

The type of the elements of source.
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TakeAllButLast<T>(IEnumerable<T>, Int32)

Take all but the last n elements of the sequence.

Declaration
public static IEnumerable<T> TakeAllButLast<T>(this IEnumerable<T> source, int n)
Parameters
Type Name Description
IEnumerable<T> source

This .
System.Int32 n

The number of elements at the end of the sequence to exclude.
Returns
Type Description
IEnumerable<T>

The resulting .
Type Parameters
Name Description
T

The type of the elements of source.