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Add key-value pair in C# Dictionary
To add key-value pair in C# Dictionary, firstly declare a Dictionary.
IDictionary<int, string> d = new Dictionary<int, string>();
Now, add elements with KeyValuePair.
d.Add(new KeyValuePair<int, string>(1, "TVs")); d.Add(new KeyValuePair<int, string>(2, "Appliances")); d.Add(new KeyValuePair<int, string>(3, "Mobile"));
After adding elements, let us display the key-value pair.
Example
using System;
using System.Collections.Generic;
public class Demo {
public static void Main() {
IDictionary<int, string> d = new Dictionary<int, string>();
d.Add(new KeyValuePair<int, string>(1, "TVs"));
d.Add(new KeyValuePair<int, string>(2, "Appliances"));
d.Add(new KeyValuePair<int, string>(3, "Mobile"));
d.Add(new KeyValuePair<int, string>(4, "Tablet"));
d.Add(new KeyValuePair<int, string>(5, "Laptop"));
d.Add(new KeyValuePair<int, string>(6, "Desktop"));
d.Add(new KeyValuePair<int, string>(7, "Hard Drive"));
d.Add(new KeyValuePair<int, string>(8, "Flash Drive"));
foreach (KeyValuePair<int, string> ele in d) {
Console.WriteLine("Key = {0}, Value = {1}", ele.Key, ele.Value);
}
}
}Output
Key = 1, Value = TVs Key = 2, Value = Appliances Key = 3, Value = Mobile Key = 4, Value = Tablet Key = 5, Value = Laptop Key = 6, Value = Desktop Key = 7, Value = Hard Drive Key = 8, Value = Flash Drive
Updated on: 03-Nov-2023
23K+ Views
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