How do you create a nested LINQ Grouping / Lookups for a Collection of Objects

Posted by Jeff Windsor on Stack Overflow See other posts from Stack Overflow or by Jeff Windsor
Published on 2010-05-20T15:50:03Z Indexed on 2010/05/20 16:00 UTC
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LINQ

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grouping

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lookup

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.NET

Given a list of objects with a date and decimal, I would like to index these objects by the year, month, dayofweek and hour of the date. In .NET 2.0, I would have created this graph using a set of nested dictionaries and a list as the leaf node. I am interested in how this could be done with LINQ.

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