Dictionary TryGetValue
C# Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | class Program { static void Main(string[] args) { //initialize a dictionary with keys and values. Dictionary<int, string> birds = new Dictionary<int, string>() { {1,"Antarctic Petrel"}, {2,"Manx Shearwater"}, {3,"Little Grebe"}, {4,"Royal Albatross"} }; Console.WriteLine("dictionary keys and values.........."); foreach (KeyValuePair<int, string> pair in birds) { Console.WriteLine(pair.Key + " ........ " + pair.Value); } string value; int key = 2; Console.WriteLine("\n"+ key + " value is: "); if (birds.TryGetValue(key, out value)) { Console.WriteLine(value); } else { Console.WriteLine("key" + key + " does not exists in dictionary"); } Console.ReadLine(); } } |
Output:
How to use Dictionary TryGetValue in C#
