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C# - SortedList.Add() Method with Example

In this tutorial, we will learn about the C# SortedList.Add() method with its definition, usage, syntax, and example. By Nidhi Last updated : March 31, 2023

SortedList.Add() Method

The SortedList.Add() is used to adds an element with the specified key and value to a SortedList object.

Syntax

void SortedList.Add(object key, object value);

Parameter(s)

key: Element's key to be stored.
value: Element's value to be stored.

Return Value

This method does not return any value.

Exception(s)

System.ArgumentNullException
System.ArgumentException
System.NotSupportedExecption
System.OutOfMemoryException
System.InvalidOperationException

C# Example of SortedList.Add() Method

The source code to add elements into a SortedList 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 list1 = new SortedList();

        // Creating another object SortedList with initialization
        SortedList list2 = new SortedList() { 
            { 1, "MP" }, 
            { 4, "UP" }, 
            { 3, "AP" }, 
            { 2, "HP" }
        };

        //Add elements to first SortedList 
        list1.Add(1, "India");
        list1.Add(5, "America");
        list1.Add(2, "Australia");
        list1.Add(3, "Africa");
        list1.Add(4, "Canada");

        Console.WriteLine("List1:");
        foreach (DictionaryEntry val in list1)
        {
            Console.WriteLine("\t{0} : {1}",
            val.Key, val.Value);
        }
        Console.WriteLine();

        Console.WriteLine("List2:");
        foreach (DictionaryEntry val in list2)
        {
            Console.WriteLine("\t{0} : {1}",
            val.Key, val.Value);
        }
    }
}

Output

List1:
        1 : India
        2 : Australia
        3 : Africa
        4 : Canada
        5 : America

List2:
        1 : MP
        2 : HP
        3 : AP
        4 : UP
Press any key to continue . . .

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