Bold和Italics在EPPLUS中无法使用excel

Question

我使用下面的代码来更新excel数据格式，这里我希望标题以粗体显示并且整数数据都是斜体格式但是当我运行代码时，其中的所有功能似乎都工作正常，除了Bold和斜体。代码也完成执行而没有任何错误，但在excel文件中没有任何单元格具有粗体或斜体格式的数据。

    public void FormatExcel()
    {
        string currentDate = DateTime.Now.ToString("yyyyMMdd");
        FileInfo File = new FileInfo("G:\\Selenium\\Test66.xlsx");
        using (ExcelPackage excel = new ExcelPackage(File))
        {
            ExcelWorksheet worksheet = excel.Workbook.Worksheets[currentDate];
            int totalRows = worksheet.Dimension.End.Row;
            int totalCols = worksheet.Dimension.End.Column;
            var headerCells = worksheet.Cells[1, 1, 1, totalCols];
            var headerFont = headerCells.Style.Font;
            headerFont.Bold = true;
            headerFont.Italic = true;
            headerFont.SetFromFont(new Font("Times New Roman", 12));
            headerFont.Color.SetColor(Color.DarkBlue);
            var headerFill = headerCells.Style.Fill;
            headerFill.PatternType = ExcelFillStyle.Solid;
            headerFill.BackgroundColor.SetColor(Color.Gray);
            var dataCells = worksheet.Cells[2, 1, totalRows, totalCols];
            var dataFont = dataCells.Style.Font;
            dataFont.Italic = true;
            dataFont.SetFromFont(new Font("Times New Roman", 10));
            dataFont.Color.SetColor(Color.DarkBlue);
            var dataFill = dataCells.Style.Fill;
            dataFill.PatternType = ExcelFillStyle.Solid;
            dataFill.BackgroundColor.SetColor(Color.Silver);
            var allCells = worksheet.Cells[1, 1, totalRows, totalCols];
            allCells.AutoFitColumns();
            allCells.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
            var border = allCells.Style.Border;
            border.Top.Style = border.Left.Style = border.Bottom.Style = border.Right.Style = ExcelBorderStyle.Thin;
            excel.Save();
        }
    }

Answer 1

问题是你在设置粗体/斜体之后设置/覆盖字体。只需按照以下方式设置字体：

headerFont.SetFromFont(new Font("Times New Roman", 12)); //Do this first
headerFont.Bold = true;
headerFont.Italic = true;

或者你甚至可以将它缩短一点：

headerFont.SetFromFont(new Font("Times New Roman", 12, FontStyle.Italic | FontStyle.Bold));