Tutorials

C# String Methods

Posted in C# Tutorial

Updated on Jan 11, 2024

By Mari Selvan

👁️ 105 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

🙋 Introduction

C# provides a comprehensive set of built-in methods for working with strings. These methods empower developers to manipulate, analyze, and format strings efficiently.

In this reference guide, we'll explore commonly used C# string methods to enhance your understanding and utilization of strings in C#.

📑 Table of Contents

Some of the commonly used string methods in C# includes:

Methods	Explanation
Clone()	Creates a shallow copy of the string, providing a new reference to the same content.
Compare()	Used to compare two strings based on their lexicographical order.
CompareOrdinal()	Compare two strings using ordinal (binary) comparison, returning an integer that indicates their relative position in lexicographical order.
CompareTo()	Compare the current string with another string, providing a numeric indication of their relative order in lexicographic (dictionary) comparison.
Concat()	Used to concatenate two or more strings and returns a new string containing the combined text.
Contains()	Checks if a specific substring is present within a given string and returns a boolean value indicating the result.
Copy()	Used to create a new string with the same content as the original string.
CopyTo()	Copies a specified number of characters from the current string to a character array, starting at a specified position in the array.
EndsWith()	Determine whether a string instance ends with a specified suffix and returns a boolean value indicating the result.
Equals()	Determine whether two strings have the same content, returning true if they are equal and false otherwise.
Format()	Used to create formatted strings by replacing placeholders (specified by curly braces {}) with the values of corresponding arguments.
GetEnumerator()	Returns an enumerator that iterates through each character in the string, facilitating sequential access for enumeration or iteration purposes.
GetHashCode()	Returns a unique numeric hash code representing the content of the string, facilitating efficient data retrieval and comparison in hash-based data structures.
GetType()	Used to obtain the runtime type information of an instance of a string, returning a Type object representing its class.
GetTypeCode()	Returns the TypeCode enumeration value corresponding to the underlying type of the string, indicating whether it represents a numeric, string, or other type.

🚀 Usage Tips

Enhance your C# string manipulation skills with these tips:

StringBuilder: For extensive string manipulation, consider using the StringBuilder class to improve performance.
String Interpolation: Leverage C#'s string interpolation feature for cleaner and more readable string formatting.
Exception Handling: Be cautious with methods that can throw exceptions; consider implementing appropriate error handling.
Globalization: Some methods have overloads that allow you to specify culture and case sensitivity, providing flexibility for globalization scenarios.

📄 Example

Let's explore a practical example of using C# string methods to manipulate a string:

Program.cs

Copied

using System;

class Program {
  static void Main() {
    // Example: Formatting a string using C# string methods

    string originalString = "hello world";
    string formattedString = originalString.Replace("hello", "greetings").ToUpper();

    Console.WriteLine($"Original String: {originalString}");
    Console.WriteLine($"Formatted String: {formattedString}");

  }
}

💻 Testing the Program

Output

Original String: hello world
Formatted String: GREETINGS WORLD

🧠 How the Program Works

This example demonstrates using the Replace and ToUpper methods to transform the original string. Experiment with different methods and discover the power of C# string manipulation.

🎉 Conclusion

This reference guide offers an overview of essential C# string methods. Incorporating these methods into your code will empower you to efficiently handle and manipulate strings. Experiment with these methods to enhance your C# programming skills. For more in-depth information, consult the official Microsoft documentation.