When I add a comment in PowerPoint using Interop, it gives an error "Comments (unknown member) : Illegal value. "

Sudhanshu Saxena 5 Reputation points
When I am adding a comment in Office 365 PowerPoint using Interop, it gives an error 

> Comments (unknown member): Invalid value.

My code was working for a long time, but in the last few days after the release of the latest version(2310) of Microsoft Office 365, it is not working due to this error. Is there are some change in `Microsoft.Office.Interop.PowerPoint.Slide.Comments.Add()`?

           Microsoft.Office.Interop.PowerPoint.Presentation doc =            Globals.ThisAddIn.Application.ActivePresentation;
           Microsoft.Office.Core.DocumentProperties properties = doc.BuiltInDocumentProperties as Microsoft.Office.Core.DocumentProperties;
           Microsoft.Office.Interop.PowerPoint.TextRange rng = Globals.ThisAddIn.Application.ActiveWindow.Selection.TextRange;
           Microsoft.Office.Interop.PowerPoint.Slide sld = Globals.ThisAddIn.Application.ActivePresentation.Slides[Globals.ThisAddIn.Application.ActiveWindow.Selection.SlideRange.SlideIndex];

  string timestamp = System.DateTime.Now.ToString("yyyyMMddHHmmssFFF");
  string commentText = timestamp + ":" + text + ": ";
  string userName = System.Environment.GetEnvironmentVariable("UserName");
  sld.Comments.Add(900, rng.BoundLeft, userName, "", commentText);    // code break at this line
 catch (Exception ex)

sld.Comments.Add(900, rng.BoundLeft, userName, "", commentText); 

A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
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Office Development
Office Development
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. Vahid Ghafarpour 20,480 Reputation points

    Thanks for posting your question in the Microsoft Q&A forum.

    Maybe because of the order of parameters, the left should be before the top.


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