What is ToCharArray() in C#?

ToCharArray() is a C# string method that is used to convert a string to an array of characters.

It gets a character array from a string object. When called on a string, it returns a character array.

Syntax

string.ToCharArray()
// With parameters
string.ToCharArray(index, length)

Parameter

The ToCharArray() method can be used without parameters. It can also be used optionally with two parameters:

An index position to specify the characters in the string where the array conversion should start.
The length to specify where it should end.

Return value

An array of characters is returned.

Code

In the code example below, we will create some strings and convert them to an array of characters using the ToCharArray() method.

// create class
class StringToArray
{   
    // main method
    static void Main()
    {
      // create strings
      string str1 = "Edpresso";
      string str2 = "Programming";
      // convert to array of characters
      char[] a = str1.ToCharArray();
      char[] b = str2.ToCharArray();
      
      // // print values to console
      foreach (char ch in a){
        System.Console.WriteLine(ch);
      }
     System.Console.WriteLine("\n");
     foreach (char ch in b){
        System.Console.WriteLine(ch);
      }
    }
}

// create class
class StringToArray
{   
    // main method
    static void Main()
    {
      // create strings
      string str1 = "Edpresso";
      string str2 = "Programming";
      // convert to array of characters
      char[] a = str1.ToCharArray(0, 3);
      char[] b = str2.ToCharArray(2, 4);
      
      // // print values to console
      foreach (char ch in a){
        System.Console.WriteLine(ch);
      }
     System.Console.WriteLine("\n");
     foreach (char ch in b){
        System.Console.WriteLine(ch);
      }
    }
}