使用 EPPLUS Excel 库格式化列

Question

我编写了一个 C# 程序来创建一个 Excel 电子表格。工作表有多个列。我想格式化其中一列。

aFile = new FileInfo(excelDocName); // excelDocName is a string
ExcelPackage pck = new ExcelPackage(aFile);
var ws = pck.Workbook.Worksheets.Add("Content");
ws.View.ShowGridLines = true;
ws.Cells["B:B"].Style.Numberformat.Format = "0.00";
ws.Cells[1, 1].Value = "AA";
ws.Cells[1, 2].Value = "BB";
ws.Cells[1, 3].Value = "CC";
ws.Cells[1, 4].Value = "DD";
for (int row = 2; row <= 10; ++row)
  for (int col = 1; col <= 4; ++col)
  {
  ws.Cells[row, col].Value = row * col;
  }
ws.Row(1).Style.Font.Bold = true;
pck.Save();

问题是，虽然它正确格式化了列，但它也使用该格式格式化了其他列，而不仅仅是我指定的列。 我也试过了：

ws.Column(1).Style.Numberformat.Format = "0.00";

这是一个错误还是我遗漏了什么？

Answer 1

您正在打开现有文件吗？在您打开它之前，它可能具有已应用于其他列的格式。或者像 astian 说的那样的模板。

清除所有格式以防万一：

ws.Cells["A:D"].Style.Numberformat.Format = null;
ws.Cells["B:B"].Style.Numberformat.Format = "0.00";

---

EPPlus 4.0.3 中的完整单元测试：

[TestMethod]
public void Format_Single_Column_Test()
{
    //http://stackoverflow.com/questions/28698226/formatting-a-column-with-epplus-excel-library
    var excelDocName = @"c:\temp\temp.xlsx";
    var aFile = new FileInfo(excelDocName); // excelDocName is a string

    if (aFile.Exists)
        aFile.Delete();

    ExcelPackage pck = new ExcelPackage(aFile);
    var ws = pck.Workbook.Worksheets.Add("Content");
    ws.View.ShowGridLines = true;
    ws.Cells["A:D"].Style.Numberformat.Format = null;
    ws.Cells["B:B"].Style.Numberformat.Format = "0.00";
    ws.Cells[1, 1].Value = "AA";
    ws.Cells[1, 2].Value = "BB";
    ws.Cells[1, 3].Value = "CC";
    ws.Cells[1, 4].Value = "DD";
    for (int row = 2; row <= 10; ++row)
        for (int col = 1; col <= 4; ++col)
        {
            ws.Cells[row, col].Value = row*col;
        }
    ws.Row(1).Style.Font.Bold = true;
    pck.Save();
}