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C# program to get the key at the specified index of a SortedList (Example of GetKey() Method)
C# SortedList.GetByIndex() Method: Here, we are going to learn how to get the key at the specified index of a SortedList in C#.Net?
Submitted by Nidhi, on April 26, 2021
The GetKey() method of SortedList class is used to access keys from SortedList on the basis of the index, the index starts from 0 to N-1. Here, N denotes a total number of elements or keys in SortedList.
Syntax:
object SortedList.GetKey(int index);
Parameter(s):
- index: The zero-based index of the key to get.
Return value:
It returns the key at the specified index of the SortedList.
Exception(s):
- System.ArgumentOutOfRangeException
Program:
The source code to get the key at the specified index of 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 list = new SortedList();
int key;
//Add elements to SortedList
list.Add(1, "India");
list.Add(5, "America");
list.Add(2, "Austrelia");
list.Add(3, "Africa");
list.Add(4, "Canada");
Console.WriteLine("keys by index:");
for(int index=0; index<=4; index++)
{
key = Convert.ToInt32(list.GetKey(index));
Console.WriteLine(key);
}
Console.WriteLine();
}
}
Output:
keys by index:
1
2
3
4
5
Press any key to continue . . .
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