Working with Comments in Word in C#

Introduction

Using the code

Part 1. Add a comment to a paragraph

//Initialize an instance of Document class

Document doc = new Document();

//Load a Word document

doc.LoadFromFile("template.docx");

//Get the paragraph that you want to add comment

Paragraph para = doc.Sections[0].Paragraphs[6];


//Insert a start comment mark at the beginning of the paragraph

CommentMark startCommentMark = new CommentMark(doc);

startCommentMark.Type = CommentMarkType.CommentStart;

para.ChildObjects.Insert(0, startCommentMark);


//Add an end comment mark at the end of the paragraph

CommentMark endCommentMark = new CommentMark(doc);

endCommentMark.Type = CommentMarkType.CommentEnd;

para.ChildObjects.Add(endCommentMark);


//Add a comment to the paragraph and specify the content and author

Comment comment = new Comment(doc);

comment.Body.AddParagraph().AppendText("This paragraph explains how to write an abstract.");

comment.Format.Author = "John";

para.ChildObjects.Add(comment);


//Save to file

doc.SaveToFile("CommentOnPara.docx", FileFormat.Docx2013);

Figure 1. Add a comment

//Initialize an instance of Document class
Document doc = new Document();
//Load the Word document generated in part 1
doc.LoadFromFile("CommentOnPara.docx");

//Get the comment by its index
Comment comment = doc.Comments[0];

//Create a new comment
Comment replyComment = new Comment(doc);
replyComment.Format.Author = "Adam";
replyComment.Body.AddParagraph().AppendText("Exactly.");

//Add the new comment as a reply to the existing comment
comment.ReplyToComment(replyComment);

//Save to file.
doc.SaveToFile("ReplyToComment.docx", FileFormat.Docx2013);

Figure 2. Reply to a comment

Part 3: Modify or remove a comment

//Initialize an instance of Document class
Document doc = new Document();
//Load the Word document generated in part 1
doc.LoadFromFile("CommentOnPara.docx");

//Get the comment by its index
Comment comment = doc.Comments[0];
//Assign new string to comment text
comment.Body.Paragraphs[0].Text = "This comment is changed.";

//Save to file.
doc.SaveToFile("ModifyComment.docx", FileFormat.Docx2013);

Figure 3. Modify a comment

Conclusion