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SortedDictionary.Item[] Property in C#
The SortedDictionary.Item[] property in C# is used to get or set the value associated with the specified key.
Syntax
The syntax is as follows −
public TValue this[TKey k] { get; set; }Above, the value k is the key of the value to get or set.
Example
Let us now see an example −
using System;
using System.Collections;
using System.Collections.Generic;
public class Demo {
public static void Main(){
SortedDictionary<int, string> sortedDict = new SortedDictionary<int, string>();
sortedDict.Add(1, "One");
sortedDict.Add(2, "Two");
sortedDict.Add(3, "Three");
sortedDict.Add(4, "Four");
sortedDict.Add(5, "Five");
sortedDict.Add(6, "Six");
Console.WriteLine("SortedDictionary key-value pairs...");
IDictionaryEnumerator demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("Count of SortedDictionary key-value pairs = "+sortedDict.Count);
sortedDict.Add(7, "Seven");
sortedDict.Add(8, "Eight");
Console.WriteLine("
SortedDictionary key-value pairs...UPDATED");
demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("Count of SortedDictionary key-value pairs (UPDATED) = "+sortedDict.Count);
Console.WriteLine("Value in the SortedDictionary key-value pair key five = "+sortedDict[5]);
sortedDict.Clear();
Console.WriteLine("
Count of SortedDictionary key-value pairs (UPDATED) = "+sortedDict.Count);
}
}Output
This will produce the following output −
Key = 1, Value = One Key = 2, Value = Two Key = 3, Value = Three Key = 4, Value = Four Key = 5, Value = Five Key = 6, Value = Six Count of SortedDictionary key-value pairs = 6 SortedDictionary key-value pairs...UPDATED Key = 1, Value = One Key = 2, Value = Two Key = 3, Value = Three Key = 4, Value = Four Key = 5, Value = Five Key = 6, Value = Six Key = 7, Value = Seven Key = 8, Value = Eight Count of SortedDictionary key-value pairs (UPDATED) = 8 Value in the SortedDictionary key-value pair key five = Five Count of SortedDictionary key-value pairs (UPDATED) = 0
Example
Let us now see another example −
using System;
using System.Collections;
using System.Collections.Generic;
public class Demo {
public static void Main(){
SortedDictionary<int, string> sortedDict = new SortedDictionary<int, string>();
sortedDict.Add(1, "SUV");
sortedDict.Add(2, "MUV");
sortedDict.Add(3, "Utility Vehicle");
sortedDict.Add(4, "AUV");
sortedDict.Add(5, "Hatchback");
sortedDict.Add(6, "Convertible");
Console.WriteLine("SortedDictionary key-value pairs...");
IDictionaryEnumerator demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("Count of SortedDictionary key-value pairs = "+sortedDict.Count);
sortedDict.Add(7, "Seven");
sortedDict.Add(8, "Eight");
Console.WriteLine("
SortedDictionary key-value pairs...UPDATED");
demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("Count of SortedDictionary key-value pairs (UPDATED) = "+sortedDict.Count);
Console.WriteLine("Value in the SortedDictionary key-value pair key five = "+sortedDict[5]);
sortedDict[5] = "Crossover";
Console.WriteLine("Value in the SortedDictionary key-value pair key five (updated) = "+sortedDict[5]);
sortedDict.Clear();
Console.WriteLine("
Count of SortedDictionary key-value pairs (UPDATED) = "+sortedDict.Count);
}
}Output
This will produce the following output −
SortedDictionary key-value pairs... Key = 1, Value = SUV Key = 2, Value = MUV Key = 3, Value = Utility Vehicle Key = 4, Value = AUV Key = 5, Value = Hatchback Key = 6, Value = Convertible Count of SortedDictionary key-value pairs = 6 SortedDictionary key-value pairs...UPDATED Key = 1, Value = SUV Key = 2, Value = MUV Key = 3, Value = Utility Vehicle Key = 4, Value = AUV Key = 5, Value = Hatchback Key = 6, Value = Convertible Key = 7, Value = Seven Key = 8, Value = Eight Count of SortedDictionary key-value pairs (UPDATED) = 8 Value in the SortedDictionary key-value pair key five = Hatchback Value in the SortedDictionary key-value pair key five (updated) = Crossover Count of SortedDictionary key-value pairs (UPDATED) = 0
Updated on: 03-Dec-2019
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