类型'System.IO.Packaging.Package'在未引用的程序集中定义[重复]

Question

我正在使用此代码

    private void Form1_Load(object sender, EventArgs e)
    {
        System.Data.DataTable dt;
        SqlConnection con=new SqlConnection("Data Source=sanjay;Initial Catalog=Login;Integrated Security=True");
        SqlCommand cmd=new SqlCommand("select * from login",con);
        SqlDataAdapter sda=new SqlDataAdapter(cmd);
        dt=new System.Data.DataTable();
        sda.Fill(dt);
        int srno = 1;
        StringBuilder stb = new StringBuilder();
        ClosedXML.Excel.XLWorkbook wb = new ClosedXML.Excel.XLWorkbook();
        String Todaysdate1 = DateTime.Now.ToString("dd-MM-yyyy");
        ClosedXML.Excel.IXLWorksheet wt;
        string appPath = Path.Combine(Environment.CurrentDirectory + "\\");
        if (!Directory.Exists(appPath + "\\" + Todaysdate1 + "\\TD"))
        {
            Directory.CreateDirectory(appPath + "\\" + Todaysdate1);
        }
        string fileName = appPath + "\\" + Todaysdate1 + "\\TD_Results_From.XLS";
        if (dt.Rows.Count > 0)
        {
           stb.Append("<html>");
             stb.Append("<head>");
             stb.Append("</head>");
             stb.Append("<body>");
             stb.Append("Sanju");
             stb.Append("<table border=2>");
             stb.Append("<tbody>");
             stb.Append("<tr style='height:25px'>");
             stb.Append("<td  colspan='18' style='text-align:center;font-size:18px;font-weight:bold;min-width:50px'>");
             stb.Append("<center> Form III - DEAF Voucher Preparation</center>");
             stb.Append("</td>");
             stb.Append("</tr>");
             stb.Append("<tr style='height:21px'>");
             stb.Append("<td colspan='18' style='text-align:center;font-size:16px;font-weight:bold;min-width:50px'>");
             stb.Append("<center>2018-05-01</center>");
             stb.Append("</td>");
             stb.Append("</tr>");
             stb.Append("<tr style='height:100px;font-weight:bold'>");
             stb.Append("<td style='text-align:center;font-size:14px'>No.</td>");
             stb.Append("</tr>");
             for (int i = 0; i < dt.Rows.Count; i++)
             {
                 stb.Append("<tr>");
                 stb.Append("<td>" + srno++ + " </td>");
                 stb.Append("<td nowrap>" + dt.Rows[i][0].ToString() + "</td>");
                 stb.Append("<td style='background-color:#ff99cc'></td>");
                 stb.Append("<td style='background-color:#ff99cc'></td>");
                 stb.Append("<td style='background-color:#ff99cc'></td>");
                 stb.Append("</tr>");
             }
             for (int i = 0; i < dt.Rows.Count; i++)
             {
                 stb.Append("<table border=2>");
                 stb.Append("<tbody>");
                 stb.Append("<tr style='height:25px'>");
                 stb.Append("<td  colspan='18' style='text-align:center;font-size:18px;font-weight:bold;min-width:50px'>");
                 stb.Append("<center> Form III - DEAF Voucher Preparation</center>");
                 stb.Append("</td>");
                 stb.Append("</tr>");
                 stb.Append("<tr style='height:21px'>");
                 stb.Append("<td colspan='18' style='text-align:center;font-size:16px;font-weight:bold;min-width:50px'>");
                 stb.Append("<center>2018-05-01</center>");
                 stb.Append("</td>");
                 stb.Append("</tr>");
                 stb.Append("<tr style='height:100px;font-weight:bold'>");
                 stb.Append("<td style='text-align:center;font-size:14px'>No.</td>");
                 stb.Append("</tr>");

                 stb.Append("<tr>");
                 stb.Append("<td>" + srno++ + " </td>");
                 stb.Append("<td nowrap>" + dt.Rows[i][0].ToString() + "</td>");
                 stb.Append("<td style='background-color:#ff99cc'></td>");
                 stb.Append("<td style='background-color:#ff99cc'></td>");
                 stb.Append("<td style='background-color:#ff99cc'></td>");
                 stb.Append("</tr>"); stb.Append("</tbody>"); stb.Append("</table>");

                   InsertWorksheet(i.ToString());
             }
             stb.Append("</tbody>");
             stb.Append("</table>");
             stb.Append("</body>");
             stb.Append("</html>");
             using (Stream stream = new FileStream(fileName, FileMode.Create))
             {
                 wb.SaveAs(stream);
             }               
            System.Diagnostics.Process.Start(appPath + "\\" + Todaysdate1 + "\\TD_Results_From.XLS");
        }
    }
    public static void InsertWorksheet(string docName)
    {
        // Open the document for editing.
        using(SpreadsheetDocument spreadSheet = SpreadsheetDocument.Open(docName, true))
        {
            // Add a blank WorksheetPart.
            WorksheetPart newWorksheetPart = spreadSheet.WorkbookPart.AddNewPart<WorksheetPart>();
            newWorksheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(new SheetData());
          DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = spreadSheet.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>();
            string relationshipId = spreadSheet.WorkbookPart.GetIdOfPart(newWorksheetPart);

            // Get a unique ID for the new worksheet.
            uint sheetId = 1;
            if (sheets.Elements<Sheet>().Count() > 0)
            {
                sheetId = sheets.Elements<Sheet>().Select(s => s.SheetId.Value).Max() + 1;
            }

            // Give the new worksheet a name.
            string sheetName = "Sheet" + sheetId;

            // Append the new worksheet and associate it with the workbook.
            Sheet sheet = new Sheet() { Id = relationshipId, SheetId = sheetId, Name = sheetName };
            sheets.Append(sheet);
        }
    }

我正在使用Html格式创建excel文件，并打开excel和数据视图，但是这样会发生错误

错误2类型'System.IO.Packaging.Package'在未引用的程序集中定义。您必须添加对程序集'WindowsBase，Version = 3.0.0.0，Culture = neutral，PublicKeyToken = 31bf3856ad364e35'的引用。 C：\ Users \ test \ Documents \ Visual Studio 2010 \ Projects \多个excelsheet \多个excelsheet \ Form1.cs 143 13多个excelsheet

Answer 1

查看此链接：-https://www.aspsnippets.com/Articles/Solution-The-type-SystemIOPackagingPackage-is-defined-in-an-assembly-that-is-not-referenced.aspx

成功工作

添加Windows Base的参考和您已解决的问题

类型'System.IO.Packaging.Package'在未引用的程序集中定义[重复]

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类型'System.IO.Packaging.Package'在未引用的程序集中定义[重复]

问题描述 投票：1回答：1

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最新问题

问题描述投票：1回答：1