Comments in C#

C# provides three types of comments. These are as follows:

1. Single-line Comments
2. Multi-line Comments
3. Documentation Comments

1. Single Line Comments
These types of comments are used to comment on a single line at a time. These comments are used to comment on a single line of code/statement.

Syntax:
// Single Line Comment

Example:
// C# program for single-line comment
using System; 

class SinglelineComment {  

    // Single Line Comment - Print message
    public static void PrintMessage(string message)
    {
        Console.WriteLine(message);
    } 

    // Main function
    static void Main(string[] args)
    {
        string message = "Example of Single Line Comment"; 

        // Calling function
        PrintMessage(message);
    }
} 

Output:
Example of Single Line Comment

2. Multiline Comments
These types of comments are used to comment multiple lines at a time. These comments are used to comment a block of code/statement.

Syntax:
/*
Multiline Comment
*/

Example:
// C# program for multiline comment
using System; 

class MultilineComment {  

    public static void PrintMessage(string message)
    {
        Console.WriteLine(message);
    } 

    static void Main(string[] args)
    { 

        /* Multiline Comment -
           Define a string variable
           and assign string value into it*/
        string message = "Example of Multiline Comment"; 

        PrintMessage(message);
    }
} 

Output:
Example of Multiline Comment

3. Documentation Comments
These types of comments are used to create the documentation of code by adding XML elements. XML elements are added in Documentation Comments.

Syntax:
/// <summary>
/// Documentation Comment
/// </summary>

Example:
// C# program for Documentation Comments 
using System; 

class DocumentationComment {  

    /// <summary>
    /// Method is used to print message on console
    /// </summary>
    /// <param name="message">message</param>
    public static void PrintMessage(string message)
    {
        Console.WriteLine(message);
    } 

    static void Main(string[] args)
    {
        string message = "Example of Documentation Comment"; 

        PrintMessage(message);
    }
} 

Output:
Example of Documentation Comment