Dictionary remove first element
C# Code:
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class Program { static void Main(string[] args) { //initialize a dictionary with keys and values. Dictionary<int, string> birds = new Dictionary<int, string>() { {1,"Tundra Swan"}, {2,"Hawaiian Goose"}, {3,"Egyptian Goose"}, {4,"Orinoco Goose"}, {5,"Andean Goose"} }; Console.WriteLine( "dictionary keys and values.........."); foreach (KeyValuePair<int, string> pair in birds) { Console.WriteLine(pair.Key + " ........ " + pair.Value); } //this line remove/delete dictionary first keyvaluepair. birds.Remove(birds.Keys.First()); //alternate way to remove dictionary first element. //birds.Remove(birds.Keys.FirstOrDefault()); Console.WriteLine("\ndictionary keys and values after remove first pair....."); foreach (KeyValuePair<int, string> pair in birds) { Console.WriteLine(pair.Key + " ........ " + pair.Value); } Console.ReadLine(); } } |
Output:
How to remove first element from Dictionary in C#
