Inserting and Removing Cell Comments in a Worksheet in VSTO and Aspose.Cells

To add comments to cells:

1. Open an existing Excel file.
2. Add a comment to a cell.
3. Save the file.

To remove the comments, the process is similar, with the exception that the comment is removed.

The code samples below illustrate how to add a comment and then how to remove a comment with either VSTO or Aspose.Cells for .NET.

Inserting Comments

These code snippets show how to add a comment to a cell, first with VSTO (C#), and then with Aspose.Cells for .NET (C#).

VSTO

 //Instantiate the Application object.
 Excel.Application excelApp = Application;

 //Specify the template Excel file path.
 string myPath = "Book1.xls";

 //Open the Excel file.
 excelApp.Workbooks.Open(myPath, Missing.Value, Missing.Value,
            Missing.Value, Missing.Value,
            Missing.Value, Missing.Value,
            Missing.Value, Missing.Value,
            Missing.Value, Missing.Value,
            Missing.Value, Missing.Value,
            Missing.Value, Missing.Value);

 //Get the A1 cell.
 Excel.Range rng1 = excelApp.get_Range("A1", Missing.Value);

 //Add the comment with text.
 rng1.AddComment("This is my comment");

 //Save the file.
 excelApp.ActiveWorkbook.Save();

 //Quit the Application.
 excelApp.Quit();

Aspose.Cells

 //Specify the template Excel file path.
 string myPath = "Book1.xls";

 //Instantiate a new Workbook.
 //Open the Excel file.
 Workbook workbook = new Workbook(myPath);

 //Add a comment to the A1 cell.
 int commentIndex = workbook.Worksheets[0].Comments.Add("A1");

 //Access the newly added comment.
 Comment comment = workbook.Worksheets[0].Comments[commentIndex];

 //Set the comment note.
 comment.Note = "This is my comment";

 //Save the Excel file.
 workbook.Save("Book1.xls");

Removing Comments

To remove a comment from a cell, use the following lines of code for VSTO (C#) and Aspose.Cells for .NET (C#).

VSTO

 //Remove the comment.
 rng1.Comment.Delete();

Aspose.Cells

 // Removing comments
 workbook.Worksheets[0].Comments.RemoveAt("A1");

Download Sample Code

• Github
• Sourceforge
• Bitbucket