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SortedDictionary.Clear() Method in C#
The SortedDictionary.Clear() method in C# is used to remove all elements from the SortedDictionary<TKey, TValue>.
Syntax
The syntax is as follows −
public void Clear ();
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("Count of SortedDictionary key-value pairs = "+sortedDict.Count); Console.WriteLine("
The SortedDictionary has the key 200? = "+sortedDict.ContainsKey(200)); sortedDict.Clear(); Console.WriteLine("Count of SortedDictionary key-value pairs = "+sortedDict.Count); } }
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 Count of SortedDictionary key-value pairs = 6 The SortedDictionary has the key 200? = True Count of SortedDictionary key-value pairs = 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(100, "Inspiron"); sortedDict.Add(200, "Alienware"); sortedDict.Add(300, "Projectors"); sortedDict.Add(400, "XPS"); 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(800, "Notebook"); sortedDict.Add(10000, "Bluetooth Speaker"); 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); 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 = 100, Value = Inspiron Key = 200, Value = Alienware Key = 300, Value = Projectors Key = 400, Value = XPS Count of SortedDictionary key-value pairs = 4 SortedDictionary key-value pairs...UPDATED Key = 100, Value = Inspiron Key = 200, Value = Alienware Key = 300, Value = Projectors Key = 400, Value = XPS Key = 800, Value = Notebook Key = 10000, Value = Bluetooth Speaker Count of SortedDictionary key-value pairs (UPDATED) = 6 Count of SortedDictionary key-value pairs (UPDATED) = 0
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