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How to create a Dictionary using C#?
Dictionary is a collection of keys and values in C#. Dictionary<TKey, TValue> is included in the System.Collection.Generics namespace.
To create a dictionary, you first need to set it and add the key and values. Here we have added 5 keys with values to a Dictionary. We have set its keys and value type as int.
IDictionary<int, int> d = new Dictionary<int, int>(); d.Add(1,44); d.Add(2,34); d.Add(3,66); d.Add(4,47); d.Add(5,76);
The following is the complete code −
Example
using System;
using System.Collections.Generic;
public class Demo {
public static void Main() {
IDictionary<int, int> d = new Dictionary<int, int>();
d.Add(1,44);
d.Add(2,34);
d.Add(3,66);
d.Add(4,47);
d.Add(5,76);
Console.WriteLine(d.Count);
}
}
Updated on: 21-Jun-2020
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