Q:

C# program to check whether a SortedList object contains a specific key (Example of Contains() Method)

belongs to collection: C# SortedList Class Programs

mahmoud2506
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2022-05-11
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Syntax:

    bool SortedList.Contains(object key);

Parameter(s):

  • key: The key to locate in the SortedList object.

Return value:

It returns a boolean value, if the key is found within SortedList then it returns true, otherwise it returns false.

Exception(s):

  • System.ArgumentNullException
  • System.InvalidOperationException
  •  
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mahmoud2506
2022-05-11
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Program:

The source code to check whether a SortedList object contains a specific key is given below. The given program is compiled and executed successfully.

using System;
using System.Collections;

class SortedListEx
{
    //Entry point of Program
    static public void Main()
    {
        //Creation of SortedList object
        SortedList list = new SortedList();
        bool ret = false;

        //Add elements to SortedList 
        list.Add(101, "India    ");
        list.Add(105, "America  ");
        list.Add(102, "Australia");
        list.Add(103, "Africa   ");
        list.Add(104, "Canada   ");

        ret = list.Contains(102);
        if (ret == true)
            Console.WriteLine("102 is contained in SortedList");
        else
            Console.WriteLine("102 is not contained in SortedList");

        ret = list.Contains(108);
        if (ret == true)
            Console.WriteLine("108 is contained in SortedList");
        else
            Console.WriteLine("108 is not contained in SortedList");
    }
}

Output:

102 is contained in SortedList
108 is not contained in SortedList
Press any key to continue . . .

 

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