asp.net-mvc – 如何使用npoi将图像放在一个单元格中

public ActionResult NPOICreate()
{
    try
    {
        FileStream fs = new FileStream(Server.MapPath(@"ContentNPOITemplate.xls"),FileMode.Open,FileAccess.ReadWrite);
        HSSFWorkbook templateWorkbook = new HSSFWorkbook(fs,true);
        var sheet = templateWorkbook.GetSheet("Sheet1");
        var patriarch = sheet.CreateDrawingPatriarch();
        HSSFClientAnchor anchor;
        anchor = new HSSFClientAnchor(0,(short)4,2,(short)6,5);
        anchor.AnchorType = 2;
        var picture = patriarch.CreatePicture(anchor,LoadImage(@"D:devWebsite/HumpbackWhale.jpg",templateWorkbook));
        picture.Resize();
        picture.LineStyle = HSSFPicture.LINESTYLE_DASHDOTGEL;
        sheet.ForceFormulaRecalculation = true;
        MemoryStream ms = new MemoryStream();
        templateWorkbook.Write(ms);
        TempData["Message"] = "Excel report created successfully!";
        return File(ms.ToArray(),"application/vnd.ms-excel","NPOINewFile.xls");
    }
    catch (Exception ex)
    {
        TempData["Message"] = "Oops! Something went wrong.";

        return RedirectToAction("NPOI");
    }

}