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ThenByDescending Operator

Modified: 2007/01/24 02:59 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 ThenByDescending operator orders an ordered sequence according to one or more keys in descending order.

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Method Signatures

// 1 - Sub-order an ordered sequence.
public static IOrderedSequence<TSource> ThenByDescending<TSource, TKey>(
    this IOrderedSequence<TSource> source, 
    Func<TSource, TKey> keySelector)
 
// 2 - Sub-order an ordered sequence, using a custom comparer.
public static IOrderedSequence<TSource> ThenByDescending<TSource, TKey>(
    this 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 OrderByDescending Operator. ThenBy sub sorts the sorted sequence.

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Loop count

See OrderByDescending.

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Code Samples

TODO: Needs code sample.

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