Question

以编程方式使用sharepoint designer 2010获取文件时出错

protected void updateTemplate_1()
{
        SPSite spSite = SPContext.Current.Site;
        SPWeb spWeb = spSite.OpenWeb();
        string FilePath = "";   

        try
          {
            spWeb.AllowUnsafeUpdates = true;
            SPListItemCollection  listItems  = spWeb.Lists["Captive Report"].Items;
            string sitecol= spSite.Url.ToString().Trim();

              foreach(SPListItem lst11 in listItems)
                {
                       FilePath=lst11.Url.ToString().Trim(); //Gets the site-relative URL of the item
                }
                SPFile file = spWeb.GetFile(FilePath);                                       
                System.IO.FileInfo templateFile = new  System.IO.FileInfo(@FilePath);

      using (OfficeOpenXml.ExcelPackage pck = new OfficeOpenXml.ExcelPackage(templateFile))   //OfficeOpenXml.ExcelPackage(result, source)
        {
        int count = pck.Workbook.Worksheets.Count;
        Response.Write(count+"<br>");

              byte[] fileBytes = pck.GetAsByteArray();  
              //byte[] fileBytes = file.OpenBinary();
                    Response.Clear();
                 Response.ClearContent();
                 Response.ClearHeaders();
                 Response.Cookies.Clear();
                 //Add the header & other information                 
                 Response.Cache.SetCacheability(HttpCacheability.Private);
                 Response.CacheControl = "private";
                 Response.Charset = System.Text.UTF8Encoding.UTF8.WebName;
                 Response.ContentEncoding = System.Text.UTF8Encoding.UTF8;
                 Response.AppendHeader("Content-Length", fileBytes.Length.ToString());
                 Response.AppendHeader("Pragma", "cache");
                 Response.AppendHeader("Expires", "60");

                string filename = "fileName_" + DateTime.Now.ToString("MMM").Trim();// +".xlsx";
                Response.AppendHeader("Content-Disposition",
                "attachment; " +
                "filename=\"" + filename + ".xlsx\"; "    //filename of excel   

                 );

                Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
                //Write it back to the client                
                Response.BinaryWrite(fileBytes);  
                }
           }
    catch (Exception ex)
    {
       Response.Write(ex.ToString());
    }

}

我想要获取的工作簿仍有3个工作表这使得工作表计数为零（0），因此在使用GetAsByteArray进行转换时，其显示错误为：

System.InvalidOperationException：工作簿必须至少包含 OfficeOpenXml.ExcelWorkbook.Save（）中的一个工作表
的OfficeOpenXml.ExcelPackage.GetAsByteArray（布尔保存）

以编程方式使用sharepoint designer 2010获取文件时出错

0 个答案: