SortedDictionary.ContainsValue() วิธีการใน C #

วิธีการ SortedDictionary.ContainsValue() ใน C# ใช้เพื่อกำหนดว่า SortedDictionary มีองค์ประกอบที่มีค่าที่ระบุหรือไม่

ไวยากรณ์

ไวยากรณ์มีดังนี้ −

public bool ContainsValue (TValue val);

ด้านบน ค่า val คือค่าที่จะค้นหาใน SortedDictionary.

ตัวอย่าง

เรามาดูตัวอย่างกัน −

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("\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("Is the value in the SortedDictionary key-value pairs = "+sortedDict.ContainsValue("Notebook"));
      sortedDict.Clear();
      Console.WriteLine("\nCount of SortedDictionary key-value pairs (UPDATED) = "+sortedDict.Count);
   }
}

ผลลัพธ์

สิ่งนี้จะสร้างผลลัพธ์ต่อไปนี้ -

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
Is the value in the SortedDictionary key-value pairs = True
Count of SortedDictionary key-value pairs (UPDATED) = 0

ตัวอย่าง

เรามาดูตัวอย่างอื่นกัน −

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("\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("Is the value in the SortedDictionary key-value pairs = "+sortedDict.ContainsValue("Eleven"));
      sortedDict.Clear();
      Console.WriteLine("\nCount of SortedDictionary key-value pairs (UPDATED) = "+sortedDict.Count);
   }
}

ผลลัพธ์

สิ่งนี้จะสร้างผลลัพธ์ต่อไปนี้ -

SortedDictionary key-value pairs...
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
Is the value in the SortedDictionary key-value pairs = False
Count of SortedDictionary key-value pairs (UPDATED) = 0