BuiltInDocumentPropertiesCategory Property

public string Category { get; set; }

Public Property Category As String
	Get
	Set

public:
property String^ Category {
	String^ get ();
	void set (String^ value);
}

member Category : string with get, set

// Create a blank document 
Document doc = new Document();

// The properties we will work with are members of the BuiltInDocumentProperties attribute
BuiltInDocumentProperties properties = doc.BuiltInDocumentProperties;

// Set the values of some descriptive properties
// These are metadata that can be glanced at without opening the document in the "Details" or "Content" folder views in Windows Explorer 
// The "Details" view has columns dedicated to these properties
// Fields such as AUTHOR, SUBJECT, TITLE etc. can be used to display these values inside the document
properties.Author = "John Doe";
properties.Title = "John's Document";
properties.Subject = "My subject";
properties.Category = "My category";
properties.Comments = $"This is {properties.Author}'s document about {properties.Subject}";

// Tags can be used as keywords and are separated by semicolons
properties.Keywords = "Tag 1; Tag 2; Tag 3";

// When right clicking the document file in Windows Explorer, these properties are found in Properties > Details > Description
doc.Save(ArtifactsDir + "Properties.Description.docx");