Comment

Comment class

Represents a comment on a slide.

public class Comment : IComment

Properties

NameDescription
Author { get; }Returns the author of a comment. Read-only ICommentAuthor.
CreatedTime { get; set; }Returns or sets the time of a comment creation. Setting this property to MinValue means no comment time is set. Read/write DateTime.
ParentComment { get; set; }Gets or sets parent comment. Read/write IComment.
Position { get; set; }Returns or sets the position of a comment on a slide. Read/write PointF.
Slide { get; }Returns or sets the parent slide of a comment. Read-only ISlide.
Text { get; set; }Returns or sets the plain text of a slide comment. Read/write String.

Methods

NameDescription
Remove()Removes comment and all its replies from the parent collection.

Examples

This example shows you how to add a comment to a slide in a PowerPoint presentation.

[C#]
// Instantiates the Presentation class
using (Presentation presentation = new Presentation())
{
    // Adds an empty slide
    presentation.Slides.AddEmptySlide(presentation.LayoutSlides[0]);
    // Adds an author
    ICommentAuthor author = presentation.CommentAuthors.AddAuthor("Jawad", "MF");
    // Sets the position for comments
    PointF point = new PointF();
    point.X = 0.2f;
    point.Y = 0.2f;
    // Adds slide comment for an author on slide 1
    author.Comments.AddComment("Hello Jawad, this is slide comment", presentation.Slides[0], point, DateTime.Now);
    // Adds slide comment for an author on slide 2
    author.Comments.AddComment("Hello Jawad, this is second slide comment", presentation.Slides[1], point, DateTime.Now);
	// Save the PowerPoint Presentation file
    presentation.Save("Comments_out.pptx", SaveFormat.Pptx);
}

This example shows you how to access an existing comment on a slide in a PowerPoint presentation.

[C#]
// Instantiates the Presentation class
using (Presentation presentation = new Presentation("Comments1.pptx"))
{
	// Iterate CommentAuthors
    foreach (var commentAuthor in presentation.CommentAuthors)
    {
        var author = (CommentAuthor) commentAuthor;
		// Iterate Comments
        foreach (var comment1 in author.Comments)
        {
            var comment = (Comment) comment1;
            Console.WriteLine("ISlide :" + comment.Slide.SlideNumber + " has comment: " + comment.Text + " with Author: " + comment.Author.Name + " posted on time :" + comment.CreatedTime + "\n");
        }
    }
}

This example shows you how to add comments and get replies to them.

[C#]
// Instantiates the Presentation class
using (Presentation pres = new Presentation())
{
    // Adds a comment
    ICommentAuthor author1 = pres.CommentAuthors.AddAuthor("Author_1", "A.A.");
    IComment comment1 = author1.Comments.AddComment("comment1", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    // Adds a reply to comment1
    ICommentAuthor author2 = pres.CommentAuthors.AddAuthor("Autror_2", "B.B.");
    IComment reply1 = author2.Comments.AddComment("reply 1 for comment 1", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    reply1.ParentComment = comment1;
    // Adds another reply to comment1
    IComment reply2 = author2.Comments.AddComment("reply 2 for comment 1", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    reply2.ParentComment = comment1;
    // Adds a reply to existing reply
    IComment subReply = author1.Comments.AddComment("subreply 3 for reply 2", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    subReply.ParentComment = reply2;
    IComment comment2 = author2.Comments.AddComment("comment 2", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    IComment comment3 = author2.Comments.AddComment("comment 3", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    IComment reply3 = author1.Comments.AddComment("reply 4 for comment 3", pres.Slides[0], new PointF(10, 10), DateTime.Now);
    reply3.ParentComment = comment3;
    // Displays the comments hierarchy on console
    ISlide slide = pres.Slides[0];
    var comments = slide.GetSlideComments(null);
    for (int i = 0; i < comments.Length; i++)
    {
        IComment comment = comments[i];
        while (comment.ParentComment != null)
        {
            Console.Write("\t");
            comment = comment.ParentComment;
        }
        Console.Write("{0} : {1}", comments[i].Author.Name, comments[i].Text);
        Console.WriteLine();
    }
    pres.Save("parent_comment.pptx",SaveFormat.Pptx);
    // Removes comment1 and all replies to it
    comment1.Remove();
    pres.Save("remove_comment.pptx", SaveFormat.Pptx);
}

See Also

ColumnFormat CommentAuthor