Convert IDictionary to Dictionary

Question

I have to convert System.Collections.Generic.IDictionary<string, decimal> to System.Collections.Generic.Dictionary<string, decimal>, and i can't. I tried the ToDictionary method and can't specify right arguments.

I've tried the following:

// my dictionary is PlannedSurfaces (of type IDictionary<string, decimal>)
blabla.ToDictionary<string, decimal>(localConstruction.PlannedSurfaces)

blabla.ToDictionary(localConstruction.PlannedSurfaces) IDictionary PlannedSurfaces, this is my dictionary. — croisharp, Jun 21 '11 at 08:01
Possible duplicate of [Convert Generic Dictionary to different type](https://stackoverflow.com/questions/702588/convert-generic-dictionary-to-different-type) — Michael Freidgeim, Jun 07 '17 at 03:28

score 82 · Accepted Answer · answered Jun 21 '11 at 08:02

82

var newDict = new Dictionary<string, decimal>(oldDictionary)

answered Jun 21 '11 at 08:02

Ray

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score 33 · Answer 2 · answered Jun 21 '11 at 08:10

33

or in linq

var castedDico = dictionary.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);

answered Jun 21 '11 at 08:10

Tomasz Jaskuλa

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score 0 · Answer 3 · answered May 07 '21 at 11:05

0

var newDictionary = (IDictionary<string, boolean>)ex.Data;

IDictionary can be casted as a Dictionary.

Note that if dictionary is empty/null, it will throw exception.

answered May 07 '21 at 11:05

Kishan Vaishnav

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Convert IDictionary to Dictionary

3 Answers3