CODEWITHSUNDEEP
c#
Денислав Ангелов
Денислав Ангелов

Reputation: 277

How to get the value of an inner Dictionary?

Here is my dictionary. 

var dic = new Dictionary<string, Dictionary<string, int>>();

I need to get the value of the int in the inner dictionary.

foreach (var country in dic)
{
    output.AppendFormat("{0} (total population: {1})", country.Key, HERE);
}

Any help?

Upvotes: 0

Views: 218

Answers (2)

Vladimir
Vladimir

Reputation: 1390

Try to run this sample in degugger:

        var dic = new Dictionary<string, Dictionary<string, int>>();
        var cities = new Dictionary<string, int>();
        cities.Add("Kiev", 6000000);
        cities.Add("Lviv", 4000000);

        dic.Add("Ukraine", cities);

        var totalPopulationByCountry = dic.ToDictionary(x => x.Key, y => y.Value.Values);
        var sumPopulationByCountry = dic.ToDictionary(x => x.Key, y => y.Value.Values.Sum());

should be what you need

Upvotes: 1

ventiseis
ventiseis

Reputation: 3099

If you want a population sum ("total popuplation"), you can use:

   var sum = country.Value.Values.Sum();
   output.AppendFormat("{0} (total population: {1})", country.Key, sum);

This uses LINQ, so you are required to have

using System.Linq;

in your source file.

Upvotes: 2

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