Home » .Net » C# Programs

How to convert string into lowercase in C#?

Here, we will learn how to convert string into lowercase? To convert string into lowercase we have a predefined method of String class String.ToLower(), which returns the string in lowercase.

Given a string in any case (lower, upper, proper or mixed case) and we have to convert into Lowercase.

For Example:

1) Input String: "This is india" then it will convert into : "this is india".
2) Input String: "This Is India" then it will convert into : "this is india".
3) Input String: "this is india" then it will convert into : "this is india".
4) Input String: "tHIS iS iNDIA" then it will convert into : "this is india".    
    

String.ToLower()

String.ToLower() Method returns lowercase converted string.

Syntax:

String String.ToLower();

Consider the program:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main()
        {
            String str1;
            String str2;

            Console.Write("Enter string : ");
            str1 = Console.ReadLine();

            str2 =str1.ToLower();
            
            Console.WriteLine("Converted string is: " + str2);
        }
    }
  
}

Output

Enter string : This Is India
Converted string is: this is india

C# Basic Programs »

---