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C# String Split

The Split() method in C# is used to break a string into an array of substrings, based on one or more delimiters.

Key Topics

1. Basic Split

Example: Splitting a Sentence into Words

string sentence = "Hello, World! Welcome to C#.";
string[] words = sentence.Split(' ');
foreach (string word in words)
{
    Console.WriteLine(word);
}

Output:

Hello, World! Welcome to C#.

2. Using Multiple Delimiters

Example: Splitting with Multiple Characters

string data = "apple;banana,orange|grape";
char[] separators = { ';', ',', '|' };
string[] fruits = data.Split(separators);
foreach (string fruit in fruits)
{
    Console.WriteLine(fruit);
}

3. StringSplitOptions

Example: Removing Empty Entries

string values = "one,,two,,,three";
string[] result = values.Split(
    new char[] { ',' }, 
    StringSplitOptions.RemoveEmptyEntries);
foreach (string val in result)
{
    Console.WriteLine(val);
}

Output:

one two three

Key Takeaways

  • The Split() method divides a string into an array based on specified delimiters.
  • You can use multiple delimiters by providing an array of characters.
  • StringSplitOptions allows you to control how the split operation handles empty entries.
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