How to add elements to a C# dictionary

8 months ago

William Carter

1 minute

To add elements to a C# dictionary, you can use the Add() method or the indexer. Here is an example of adding elements to a dictionary using both of these methods:

Using the Add() method:

Dictionary<string, int> dict = new Dictionary<string, int>();
dict.Add("key1", 1);
dict.Add("key2", 2);

use an indexer:

Dictionary<string, int> dict = new Dictionary<string, int>();
dict["key1"] = 1;
dict["key2"] = 2;

You can add elements to a dictionary using any method. However, if the key specified when using an indexer already exists in the dictionary, an exception will be thrown. It is therefore advisable to check if the key already exists in the dictionary before using an indexer.