C# 0 The Complete Reference

//

 and 

/* */

. The third type is 

based on XML tags and is called a 

documentation comment

. (The term 

XML comment

 is 

also commonly used.) A single-line documentation comment begins with 

///

. A multiline 

documentation comment begins with 

/**

 and ends with 

*/

. The lines after the 

/**

 can (but 

are not required to) start with a single 

*

. If all subsequent lines in the multiline comment 

begin with a 

*

, the 

*

 is ignored.

Documentation comments precede the declaration of such things as classes, namespaces, 

methods, properties, and events. Using documentation comments, you can embed information 

about your program into the program itself. When you compile the program, you can have 

the documentation comments placed into an XML file. Documentation comments can also 

be utilized by the IntelliSense feature of Visual Studio.