How to convert uppercase letters to lowercase letters using C#?

To convert uppercase letters to lowercase letters, use the ToLower() method in C#.

Assume your string is -

str = "TIM";

To convert the uppercase string above to lowercase, use the ToLower() method -

Console.WriteLine("Converted to LowerCase : {0}", str.ToLower());

The following is the conversion in C# Codes for character case -

Example

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

namespace Demo {
   class MyApplication {
      static void Main(string[] args) {
         string str;
         str = "TIM";
         Console.WriteLine("UpperCase : {0}", str);

         // convert to lowercase
         Console.WriteLine("Converted to LowerCase : {0}", str.ToLower());
         Console.ReadLine();
      }
   }
}

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