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C# program to copy SortedList elements to a one-dimensional Array object (Example of CopyTo() Method)

C# SortedList.CopyTo() Method: Here, we are going to learn how to copy SortedList elements to a one-dimensional Array object in C#.Net?
Submitted by Nidhi, on May 02, 2021

The CopyTo() method of SortedList class is used to copy SortedList elements to a one-dimensional array, starting at the specified index of the array.

Syntax:

    void SortedList.CopyTo(Array array, int arrayIndex);

Parameter(s):

• array: Used to copy elements of SortedList.
• arrayIndex: The index in array at which copying begins

Return value:

It does not return any value.

Exception(s):

• System.ArgumentNullException
• System.ArgumentOutOfRangeException
• System.ArgumentException
• System.InvalidCastException

Program:

The source code to copy SortedList elements to a one-dimensional Array object 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();
     
        //Add elements to SortedList 
        list.Add(101, "India    ");
        list.Add(105, "America  ");
        list.Add(102, "Austrelia");
        list.Add(103, "Africa   ");
        list.Add(104, "Canada   ");

        Console.WriteLine("SortedList Values:");
        foreach (string value in list.Values)
        {
            Console.WriteLine("\t" + value);
        }

        //
        DictionaryEntry[] arr = new DictionaryEntry[list.Count];

        //Here we copy sorted list elements to specified index of array
        list.CopyTo(arr, 0);

        //Now we print array elements

        Console.WriteLine("Array Values:");
        for (int index = 0; index < arr.Length; index++)
        {
            Console.WriteLine("\t"+arr[index].Value);
        } 
    }
}

Output:

SortedList Values:
        India
        Austrelia
        Africa
        Canada
        America
Array Values:
        India
        Austrelia
        Africa
        Canada
        America
Press any key to continue . . .

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