ToLookupExtensions.

ToLookup<TKey>(IEnumerable<IDocument>, string, IEqualityComparer<TKey>) Method

Summary

Creates a lookup from a sequence of documents and the values of a specified metadata key and compares the keys by using a specified comparer. If a document does not contain the specified metadata key, it is not included in the result set.
Assembly
Wyam.Common.dll
Namespace
Wyam.Common.Documents
Containing Type
ToLookupExtensions

Syntax

public static ILookup<TKey, IDocument> ToLookup<TKey>(this IEnumerable<IDocument> documents, string keyMetadataKey, IEqualityComparer<TKey> comparer)

Type Parameters

Name Description
TKey The type of the key.

Parameters

Name Type Description
documents IEnumerable<IDocument> The documents.
keyMetadataKey string The key metadata key.
comparer IEqualityComparer<TKey> The comparer.

Return Value

Type Description
ILookup<TKey, IDocument> A lookup.
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