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Asked: 2026-05-20T16:50:32+00:00

System.Collections.Specialized contains StringDictionary http://msdn.microsoft.com/en-us/library/system.collections.specialized.stringdictionary.aspx#Y1626 What’s difference with Strong Typed Dictionary in Generics?

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System.Collections.Specialized contains StringDictionary
http://msdn.microsoft.com/en-us/library/system.collections.specialized.stringdictionary.aspx#Y1626

What’s difference with Strong Typed Dictionary in Generics?

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  1. Editorial Team

    StringDictionary comes from .Net 1, which predates generics.

    Therefore, unlike Dictionary<String, String>, it doesn’t implement any generic interfaces, so it cannot be used with LINQ (unless you Cast())

    Also, StringDictionary normalizes all keys to lowercase.
    (To make a case-insensitive Dictionary<String, String>, pass StringComparer.OrdinalIgnoreCase; this is also more compatible with Turkey)

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