convert List<Dictionary<string, string>> to Dictionary<string, Dictionary<string, string>>

Question

I have some data

List<Dictionary<string, string>> data = new List<Dictionary<string, string>>();

And as a result i need a Dictionary of dictionaries like

Dictionary<string, Dictionary<string, string>> data2 = new Dictionary<string, Dictionary<string, string>>();

How can I convert this?

foreach(Dictionary<string, string> item in data) { string title = null; var dictionary = new Dictionary<string, string>(); foreach(KeyValuePair<string, string> kp in item) { if (kp.Key == "title") { title = kp.Value; } else { dictionary.Add(kp.Key, kp.Value); } } data2.Add(title, dictionary); } — Evghenii
– Evghenii, Commented Jul 9, 2015 at 17:06

Community · Accepted Answer · 2017-03-20 10:29:34Z

1

You can convert a List to a Dictionary with the ToDictionary method, but you need to specify a key for each entry. For example, you can take an arbitrary value from the inner dictionary:

var data2 = data.ToDictionary(d => d.Values.First());

However, I smell an XY problem here.

edited Mar 20, 2017 at 10:29

CommunityBot

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answered Jul 9, 2015 at 15:59

Glorfindel

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