如何在C#中使用NPOI Excel添加单元格注释?
问题描述:
我想在C#中使用NPOI Excel创建单元格注释。我没有找到任何明确的文件。我自己写下如下。如何在C#中使用NPOI Excel添加单元格注释?
NPOI.HSSF.Record.NoteRecord nr = new NPOI.HSSF.Record.NoteRecord();
nr.Author = "Some Author";
NPOI.HSSF.Record.TextObjectRecord tor = new NPOI.HSSF.Record.TextObjectRecord();
tor.Str = new HSSFRichTextString("something");
HSSFComment cm = new HSSFComment(nr, tor);
cm.Visible = true;
sheet.GetRow(i).Cells[k + 8].CellComment = cm;
该代码无法正常工作。我在生成的excel文件中看不到有关该单元格的任何评论。有没有人知道我该如何在特定的单元格中添加评论?
答
您需要使用绘图族长创建单元格注释。然后你可以定义你的作者和文本。您也可以应用一些字体自定义。
请试试这个代码,我评论的不同步骤:
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = (HSSFSheet)workbook.CreateSheet("Sheet1");
HSSFRow row = (HSSFRow)sheet.CreateRow(0);
HSSFCell cell = (HSSFCell)row.CreateCell(0);
cell.SetCellValue("Cell1");
// Create the drawing patriarch (top level container for all shapes including cell comments)
IDrawing patriarch = (HSSFPatriarch)sheet.CreateDrawingPatriarch();
// Client anchor defines size and position of the comment in the worksheet
IComment comment = patriarch.CreateCellComment(new HSSFClientAnchor(0, 0, 0, 0, 2, 1, 4, 4));
// Set comment author
comment.Author = "Author";
// Set text in the comment
comment.String = new HSSFRichTextString($"{comment.Author}:{Environment.NewLine}A comment");
// If you want the author displayed in bold on top like in Excel
// The author will be displayed in the status bar when on mouse over the commented cell
IFont font = workbook.CreateFont();
font.Boldweight = (short)FontBoldWeight.Bold;
comment.String.ApplyFont(0, comment.Author.Length, font);
// Set comment visible
comment.Visible = true;
// Assign comment to a cell
cell.CellComment = comment;
using (MemoryStream exportData = new MemoryStream())
{
workbook.Write(exportData);
Response.ContentEncoding = Encoding.UTF8;
Response.Charset = Encoding.UTF8.EncodingName;
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("content-disposition", $"attachment; filename=test.xls");
Response.Clear();
Response.BinaryWrite(exportData.GetBuffer());
Response.End();
}
参考文献:
感谢krlzlx。我已经和族长一起处理了。 – aanilapaydin
不客气。总是乐于提供帮助。 – krlzlx