使用EPplus將同一圖像多次插入Excel

Question

我想使用EPplus方法將同一圖像多次插入excel。 我在線研究並嘗試了該鏈接中的方法（ 使用EPPlus將圖像添加到Excel中 ），但是在此行中收到以下錯誤“圖紙集中已經存在名稱” ：

var picture = ws.Drawings.AddPicture(a.ToString(), repeatimage);

這是我的代碼：

public void ExportToExcel()
{
    //for export

        ExcelPackage objExcelPackage = new ExcelPackage();   //create new workbook

        string[] filesindirectory = Directory.GetDirectories(Server.MapPath("~/Folder"));
        string repeatimagepath=@"C:\Users\user\Desktop\Project\Project1\Project1\NewProject\NewProject\Image\repeatimage.png";
        Bitmap repeatimage= new Bitmap(repeatimagepath);
        int count = 0;
        int count1 = 0;
        int x = 25;
        int finalValue = 0;

        foreach (string subdir in filesindirectory)
        {
            count++;
            string[] splitter = subdir.Split('\\');
            string folderName = splitter[splitter.Length - 1];
            ExcelWorksheet ws = objExcelPackage.Workbook.Worksheets.Add(folderName); //create new worksheet
            count1 = 0;
            foreach (string img in Directory.GetFiles(subdir))
            {
                count1++;
                System.Web.UI.WebControls.Image TEST_IMAGE = new System.Web.UI.WebControls.Image();
                System.Drawing.Image myImage = System.Drawing.Image.FromFile(img);
                var pic = ws.Drawings.AddPicture(count1.ToString(), myImage);  

                **for (int a = 0; a < 5; a++)
                {
                    var picture = ws.Drawings.AddPicture(a.ToString(), repeatimage);
                    picture.SetPosition(a * 5, 0, 2, 0);
                }**

                // Row, RowoffsetPixel, Column, ColumnOffSetPixel
                if (count1 > 1)
                {
                    pic.SetPosition(finalValue, 0, 2, 0);
                    finalValue += (x + 1); // Add 1 to have 1 row of empty row
                }
                else
                {
                    pic.SetPosition(count1, 0, 2, 0);
                    finalValue = (count1 + x) + 1; // Add 1 to have 1 row of empty
                }
                myImage.Dispose();
                repeatimage.Dispose();
            }
        }

        var filepath = new FileInfo(@"C:\Users\user\Desktop\Test\" + datetime.ToString("dd-MM-yyyy_hh-mm-ss") + ".xlsx");
        objExcelPackage.SaveAs(filepath);
}

問題：如何使用EPplus將同一圖像多次插入excel？

請幫助我，謝謝。

Answer 1

錯誤已經告訴您答案
這行你的count1是1

var pic = ws.Drawings.AddPicture(count1.ToString(), myImage);  

然后這條線

for (int a = 0; a < 5; a++)
{
    var picture = ws.Drawings.AddPicture(a.ToString(), repeatimage);
    picture.SetPosition(a * 5, 0, 2, 0);
}

您的a將是0 ， 1 ， 2 ， 3 ， 4作為畫面的名稱
您看到錯誤了嗎？