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ThenBy Operator

Modified: 2007/01/24 02:56 by t_magennis - Categorized as: LINQ to Objects
{TOC}
Namespace:System.Linq
Assembly:System.Core.dll
Extends:IEnumerable<T>

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Introduction

The ThenBy operator orders an ordered sequence according to one or more keys in ascending order.

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Method Signatures

// 1 - Order an already ordered sequence in ascending order by one or more keys.
public static IOrderedSequence<TSource> ThenBy<TSource, TKey>(IOrderedSequence<TSource> source, Func<TSource, TKey> keySelector)
 
// 2 - Order an already ordered sequence in ascending order by one or more keys.
// A custom comparer function can be provided.
public static IOrderedSequence<TSource> ThenBy<TSource, TKey>(IOrderedSequence<TSource> source, Func<TSource, TKey> keySelector, IComparer<TKey> comparer)



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Exceptions

Throws an ArgumentNullException if source is null.


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Pseudo-code

See OrderBy Operator. ThenBy sub sorts the sorted sequence.

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Loop count

See OrderBy.

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Code Samples

TODO: Needs code sample.

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