Example 1: declare dictionary c#
var students2 = new Dictionary<int, StudentName>()
{
[111] = new StudentName { FirstName="Sachin", LastName="Karnik", ID=211 },
[112] = new StudentName { FirstName="Dina", LastName="Salimzianova", ID=317 } ,
[113] = new StudentName { FirstName="Andy", LastName="Ruth", ID=198 }
};
Example 2: c# dictionaries
IDictionary<int, string> dict = new Dictionary<int, string>();
Dictionary<int, string> dict = new Dictionary<int, string>();
Example 3: dictionary c#
IDictionary<int, string> numberNames = new Dictionary<int, string>();
numberNames.Add(1,"One");
numberNames.Add(2,"Two");
numberNames.Add(3,"Three");
foreach(KeyValuePair<int, string> kvp in numberNames)
Console.WriteLine("Key: {0}, Value: {1}", kvp.Key, kvp.Value);
var cities = new Dictionary<string, string>(){
{"UK", "London, Manchester, Birmingham"},
{"USA", "Chicago, New York, Washington"},
{"India", "Mumbai, New Delhi, Pune"}
};
foreach(var kvp in cities)
Console.WriteLine("Key: {0}, Value: {1}", kvp.Key, kvp.Value);
Example 4: dictionary c#
var cities = new Dictionary<string, string>(){
{"UK", "London, Manchester, Birmingham"},
{"USA", "Chicago, New York, Washington"},
{"India", "Mumbai, New Delhi, Pune"}
};
Console.WriteLine(cities["UK"]);
Console.WriteLine(cities["USA"]);
if(cities.ContainsKey("France")){
Console.WriteLine(cities["France"]);
}
string result;
if(cities.TryGetValue("France", out result))
{
Console.WriteLine(result);
}
for (int i = 0; i < cities.Count; i++)
{
Console.WriteLine("Key: {0}, Value: {1}",
cities.ElementAt(i).Key,
cities.ElementAt(i).Value);
}