C# – Convert String to Uppercase
To convert String to uppercase in C#, call String.ToUpper()
method on the String instance. ToUpper()
returns a transformed string of our original string, where lowercase characters are converted to uppercase characters.
Reference to C# String.ToUpper() method.
Example
In the following program, we will take a string "Hello World"
and convert the string to uppercase using ToUpper()
method.
C# Program
using System; class Example { static void Main(string[] args) { String str = "Hello World"; String result = str.ToUpper(); Console.WriteLine($"Original String : {str}"); Console.WriteLine($"Uppercase String : {result}"); } }
Output
Original String : Hello World Uppercase String : HELLO WORLD
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Conclusion
In this C# Tutorial, we have learned how to convert a given string into uppercase using String.ToUpper() method.