Excel 文件生成 - API/方法暴露？

Question

Acumatica 显然能够从系统中的不同位置创建 excel 文件。

生成excel文件的方法是否偶然公开，可以在标准网格、报表、导入服务之外使用？

我需要能够从我的一项操作中生成一个 excel 文件并将其作为文件附件附加。为了简单起见，我更喜欢使用内置的 excel 方法，然后再继续使用 EPPlus dll 或类似方法。

感谢您提供任何信息

Answer 1

您可以利用PX.Export.Excel.Core.Package 生成Excel 文件。

生成的 Excel 可以使用PXRedirectToFileException 重定向异常下载，也可以使用通知模板和TemplateNotificationGenerator 作为电子邮件附件发送。

using System;
using System.Linq;
using System.Text;
using PX.Objects.SO;
using PX.Objects.CR;
using PX.Common;
using PX.Data;
using PX.SM;
using System.IO;

namespace PXDemoPkg
{
    public class SOOrderEntryPXExt : PXGraphExtension<SOOrderEntry>
    {
        public PXAction<SOOrder> ExportToExcelAndSendEmailAttachment;
        [PXUIField(DisplayName = "Export To Excel And Send Email Attachment", MapViewRights = PXCacheRights.Select, MapEnableRights = PXCacheRights.Update)]
        [PXButton]
        protected virtual void exportToExcelAndSendEmailAttachment()
        {
            if (Base.Document.Current == null ||
                Base.Document.Cache.GetStatus(Base.Document.Current) == PXEntryStatus.Inserted) return;

            var excel = new PX.Export.Excel.Core.Package();
            var sheet = excel.Workbook.Sheets[1];

            //Add Header
            sheet.Add(1, 1, "Line #");
            sheet.Add(1, 2, "Transaction Description");
            sheet.Add(1, 3, "Ordered Quantity");

            //Add Data
            var index = 2;
            foreach (PXResult<SOLine> lineItem in Base.Transactions.Select())
            {
                SOLine dataRow = (SOLine)lineItem;
                sheet.Add(index, 1, Convert.ToString(dataRow.LineNbr));
                sheet.Add(index, 2, dataRow.TranDesc);
                sheet.Add(index, 3, Convert.ToString(dataRow.OrderQty));
                index++;
            }
            sheet.SetColumnWidth(1, 20);
            sheet.SetColumnWidth(2, 45);
            sheet.SetColumnWidth(3, 35);

            //ExportFile(excel);
            SendEmail(excel);
        }

        //To download generated Excel    
        private void ExportFile(PX.Export.Excel.Core.Package excel)
        {
            using (MemoryStream stream = new MemoryStream())
            {
                excel.Write(stream);
                string path = String.Format("SO-{0}-Transaction Info.xlsx", Base.Document.Current.OrderNbr);
                var info = new PX.SM.FileInfo(path, null, stream.ToArray());
                throw new PXRedirectToFileException(info, true);
            }
        }

        //Email generated Excel as an attachment
        private void SendEmail(PX.Export.Excel.Core.Package excel)
        {
            bool sent = false;

            //Notiftcaion with name "SOTransactionInfo" should be created via screen SM204003 prior to using this code.
            Notification rowNotification = PXSelect<Notification,
                                               Where<Notification.name,
                                                   Equal<Required<Notification.name>>>>
                                           .Select(Base, "SOTransactionInfo");

            if (rowNotification == null)
                throw new PXException("Notification Template for is not specified.");

            var sender = PX.Objects.EP.TemplateNotificationGenerator.Create(Base.Document.Current,
                                                                        rowNotification.NotificationID.Value);
            sender.MailAccountId = rowNotification.NFrom.HasValue ?
                                   rowNotification.NFrom.Value :
                                   PX.Data.EP.MailAccountManager.DefaultMailAccountID;

            sender.To = "demo@demo.com";

            //Attach Excel
            using (MemoryStream stream = new MemoryStream())
            {
                excel.Write(stream);
                string path = String.Format("SO-{0}-Transaction Info.xlsx", Base.Document.Current.OrderNbr);
                sender.AddAttachment(path, stream.ToArray());
            }
            sent |= sender.Send().Any();
        }
    }
}