XML comments are similar to HTML comments. The comments are added as notes or lines for understanding the purpose of an XML code. Comments can be used to include related links, information, and terms. They are visible only in the source code; not in the XML code. Comments may appear anywhere in XML code.

Which symbol is used to include XML comments?

The syntax for adding XML comments in your code is triple slashes /// followed by one of the supported XML tags.

What is the comment syntax for C#' s XML based documentation?

Documentation comments are similar to C# single-line comments, but start with /// (that’s three slashes), and can be applied to any user-defined type or member. As well as containing descriptive text, these comments can also include embedded XML tags.