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SortedDictionary.Remove() Method in C#
The SortedDictionary.Remove() method in C# is used to remove the element with the specified key from the SortedDictionary<TKey, TValue>.
Output
The syntax is as follows −
public bool Remove (TKey key);
Above, the parameter key is the key of the element to remove.
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(100, "Mobile");
sortedDict.Add(200, "Laptop");
sortedDict.Add(300, "Desktop");
sortedDict.Add(400, "Speakers");
sortedDict.Add(500, "Headphone");
sortedDict.Add(600, "Earphone");
Console.WriteLine("SortedDictionary key-value pairs...");
IDictionaryEnumerator demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("
Key 400 removed from SortedDictionary? = "+sortedDict.Remove(400));
Console.WriteLine("
SortedDictionary key-value pairs...UPDATED");
demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
SortedDictionary<int, string>.KeyCollection keyColl = sortedDict.Keys;
Console.WriteLine("
Keys...list");
foreach( int i in keyColl ){
Console.WriteLine(i);
}
}
}Output
This will produce the following output −
SortedDictionary key-value pairs... Key = 100, Value = Mobile Key = 200, Value = Laptop Key = 300, Value = Desktop Key = 400, Value = Speakers Key = 500, Value = Headphone Key = 600, Value = Earphone Key 400 removed from SortedDictionary? = True SortedDictionary key-value pairs...UPDATED Key = 100, Value = Mobile Key = 200, Value = Laptop Key = 300, Value = Desktop Key = 500, Value = Headphone Key = 600, Value = Earphone Keys...list 100 200 300 500 600
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, "Ultrabook");
sortedDict.Add(2, "Alienware");
sortedDict.Add(3, "Notebook");
sortedDict.Add(4, "Connector");
sortedDict.Add(5, "Flash Drive");
sortedDict.Add(6, "SSD");
sortedDict.Add(7, "HDD");
sortedDict.Add(8, "Earphone");
Console.WriteLine("SortedDictionary key-value pairs...");
IDictionaryEnumerator demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("
Key 7 removed from SortedDictionary? = "+sortedDict.Remove(7));
Console.WriteLine("
SortedDictionary key-value pairs...UPDATED");
demoEnum = sortedDict.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
SortedDictionary<int, string>.KeyCollection keyColl = sortedDict.Keys;
Console.WriteLine("
Keys...list");
foreach( int i in keyColl ){
Console.WriteLine(i);
}
}
}Output
This will produce the following output −
SortedDictionary key-value pairs... Key = 1, Value = Ultrabook Key = 2, Value = Alienware Key = 3, Value = Notebook Key = 4, Value = Connector Key = 5, Value = Flash Drive Key = 6, Value = SSD Key = 7, Value = HDD Key = 8, Value = Earphone Key 7 removed from SortedDictionary? = True SortedDictionary key-value pairs...UPDATED Key = 1, Value = Ultrabook Key = 2, Value = Alienware Key = 3, Value = Notebook Key = 4, Value = Connector Key = 5, Value = Flash Drive Key = 6, Value = SSD Key = 8, Value = Earphone Keys...list 1 2 3 4 5 6 8
Updated on: 03-Dec-2019
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