Check if a SortedSet object is a proper subset of the specified collection in C#

To check if a SortedSet object is a proper subset of the specified collection, the code is as follows −

Example

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   public static void Main(){
      SortedSet set1 = new SortedSet();
      set1.Add(20);
      set1.Add(40);
      set1.Add(60);
      set1.Add(80);
      set1.Add(100);
      set1.Add(120);
      set1.Add(140);
      Console.WriteLine("Elements in SortedSet1...");
      foreach (int res in set1){
         Console.WriteLine(res);
      }
      SortedSet set2 = new SortedSet();
      set2.Add(20);
      set2.Add(40);
      set2.Add(60);
      Console.WriteLine("Elements in SortedSet2...");
      foreach (int res in set2){
         Console.WriteLine(res);
      }
      Console.WriteLine("SortedSet2 is a proper subset of SortedSet1? = "+set2.IsProperSubsetOf(set1));
   }
}

Output

This will produce the following output −

Elements in SortedSet1...
20
40
60
80
100
120
140
Elements in SortedSet2...
20
40
60
SortedSet2 is a proper subset of SortedSet1? = True

Example

Let us see another example −

 Live Demo

using System;
using System.Collections.Generic;
public class Demo {
   public static void Main(){
      SortedSet set1 = new SortedSet();
      set1.Add(20);
      set1.Add(40);
      set1.Add(60);
      Console.WriteLine("Elements in SortedSet1...");
      foreach (int res in set1){
         Console.WriteLine(res);
      }
      SortedSet set2 = new SortedSet();
      set2.Add(20);
      set2.Add(40);
      set2.Add(60);
      Console.WriteLine("Elements in SortedSet2...");
      foreach (int res in set2){
         Console.WriteLine(res);
      }
      Console.WriteLine("SortedSet2 is a proper subset of SortedSet1? = "+set2.IsProperSubsetOf(set1));
   }
}

Output

This will produce the following output −

Elements in SortedSet1...
20
40
60
Elements in SortedSet2...
20
40
60
SortedSet2 is a proper subset of SortedSet1? = False