Hooked on LINQ

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for .NET Language Integrated Query

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Namespace:System.Linq
Assembly:System.Core.dll
Extends:IEnumerable<T>

Back to Standard Query Operator Index


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Introduction

The All operator checks whether all elements of a sequence satisfy a condition.

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Method Signatures

public static bool All<TSource>(
    this IEnumerable<TSource> source, 
    Func<TSource, bool> predicate)



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Exceptions

Throws an ArgumentNullException if source or predicate is null.

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Pseudo-code

If source is null, throw an ArgumentNullException.
If predicate is null, throw an ArgumentNullException.
Iterate the source sequence
If predicate( this element ) is false, return false immediately.
Return true only if all elements pass the predicate function (i.e. we fell through the loop).


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Loop Count

< 1 if the predicate fails, otherwise 1.


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Code Samples

TODO:Needs code sample.

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