using System.Collections.Generic; using System.Linq; public class Program { public static void Main() { // Create a dictionary var dictionary = new DictionaryIn this example, we create a dictionary and add some values to it. Then, we use the GetNames method to retrieve an array of all the variable names in the dictionary, and print them out. Package/library: This method is part of the .NET Framework Class Library, specifically the System.Xml.Linq namespace.(); // Add some values dictionary.Add("name", "John"); dictionary.Add("age", "30"); dictionary.Add("location", "New York"); // Get the names of all the variables in the dictionary string[] names = dictionary.Keys.ToArray(); // Print the names foreach (string name in names) { Console.WriteLine(name); } } }