To generate documentation tags, you should use the Comment box in property sheets. You can use any documentation tag before and after documentation, for example you can type <summary> and </summary>.
If you add a tag, the documentation is preceded by /// in the generated code. During reverse engineering, the / signs used to identify documentation are removed and the start and end documentation tags are automatically added.
In the following example, you add a comment to class Employee:
The following code is generated:
/// <summary> /// this is documentation /// this is documentation /// </summary>