C # Increase by 1 the value of a Dictionaryint, int with LINQ

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C # Increase by 1 the value of a Dictionaryint, int with LINQ

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#1 by (3 votes)

1

I have the following dictionary

Dictionary<int, int> datos

Which contains the following key-values:

[0, 2015]
[1, 2016]
[2, 2017]

My goal is to increase the value by 1 ( with LINQ ) so that it stays like this:

[0, 2016]
[1, 2017]
[2, 2018]

Thanks in advance.

c# linq diccionarios

asked by Corpex 20.07.2017 в 11:38

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score 3 · Accepted Answer

As I say in my comment, LINQ is a query language, not a modification language. In your case, what you want is very simple as long as you understand that the LINQ query will return a new collection. Then you can assign the new collection to the old one:

var nuevosDatos = datos.ToDictionary(x => x.Key, y=> y.Value + 1);
datos = nuevosDatos;

Or directly:

datos = datos.ToDictionary(x => x.Key, y=> y.Value + 1);