What is the Split method in C#?

The Split() method is part of the string class in C#. The method is used to split a string based on the delimiters passed to the string.

The delimiters can be a character, an array of characters, or even an array of strings. We can also pass the function an array of strings to be split on the delimiters passed to it.

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Code

The following code illustrates the various ways that the split() function can be used. Note the various type of arguments passed to the function.

1. Splitting a string on a character

using System;
class Program
{
  static void Main()
  {
    string sentence = "czechoslovakia";
    string[] words = sentence.Split('o');
    foreach (string word in words)
    {
        Console.WriteLine(word);
    }
  }
}

2. Splitting a string on an array of characters

using System;
class Program
{
  static void Main()
  {
    string sentence = "the quick:brown fox";
    char[] separator = { ':', ' ' }; 
    string[] words = sentence.Split(separator);
    foreach (string word in words)
    {
        Console.WriteLine(word);
    }
  }
}

3. Splitting a string on an array of strings

using System;
class Program
{
  static void Main()
  {
    string[] separator = { "<<", "..." };
    string sentence = "one<<two......three<four";
    string[] words = sentence.Split(separator, System.StringSplitOptions.RemoveEmptyEntries);
    foreach (var word in words)
    {
        System.Console.WriteLine(word);
    }
  }
}

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