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 first 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 A1 cell.

 int commentIndex = workbook.Worksheets[0].Comments.Add("A1");

//Accessing the newly added comment

 Comment comment = workbook.Worksheets[0].Comments[commentIndex];

//Setting the comment note

 comment.Note = "This is my comment";

//Save As 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