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

Last edited Jan 1, 2014 at 6:18 AM by asposemarketplace, version 3