C#-এ SortedDictionary.Keys বৈশিষ্ট্য

C#-এ SortedDictionary.Keys বৈশিষ্ট্যটি ব্যবহার করা হয় SortedDictionary<TKey, TValue>-এ থাকা কীগুলোর সংগ্রহ (collection) পেতে।

সিনট্যাক্স

সিনট্যাক্স নিম্নরূপ -

public System.Collections.Generic.SortedDictionary<TKey,TValue>.KeyCollection Keys { get; }

উদাহরণ

এখন একটি উদাহরণ দেখি -

using System; 
using System.Collections; 
using System.Collections.Generic; 
public class Demo { 
    public static void Main(){ 
        SortedDictionary sortedDict = new SortedDictionary(); 
        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("\nSortedDictionary 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]); 
        SortedDictionary.KeyCollection keyColl = sortedDict.Keys; 
        Console.WriteLine("\nKeys..."); 
        foreach( int i in keyColl ){ 
            Console.WriteLine(i); 
        } 
    } 
}

আউটপুট

এটি নিম্নলিখিত আউটপুট তৈরি করবে -

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
Keys...
1
2
3
4
5
6
7
8

উদাহরণ

এখন আরেকটি উদাহরণ দেখি -

using System; 
using System.Collections; 
using System.Collections.Generic; 
public class Demo { 
    public static void Main(){ 
        SortedDictionary sortedDict = new SortedDictionary(); 
        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("\nThe SortedDictionary has the key 200? = "+sortedDict.ContainsKey(200)); 
        SortedDictionary.KeyCollection keyColl = sortedDict.Keys; 
        Console.WriteLine("\nKeys..."); 
        foreach( int i in keyColl ){ 
            Console.WriteLine(i); 
        } 
    } 
}

আউটপুট

এটি নিম্নলিখিত আউটপুট তৈরি করবে -

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
The SortedDictionary has the key 200? = True
Keys...
100
200
300
400
500
600