OnDoc/DOCGEN_sik/Klassen/SyncFExcel.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Model;
using Syncfusion.DocIO.DLS;
using Syncfusion.XlsIO;

namespace DOCGEN.Klassen
{
    public class SyncFExcel
    {
        public bool create_nativ(string property, string value, string base64, string originalfile, string destfile)
        {
            FileStream ms = new FileStream(originalfile, FileMode.Open, FileAccess.Read);
            FileStream os = new FileStream(destfile, FileMode.Create);
            ExcelEngine ex = new ExcelEngine();
            IApplication application = ex.Excel;
            IWorkbook workbook = application.Workbooks.Open(ms);

            try
            {
                workbook.CustomDocumentProperties[property].Text = value;
            }
            catch
            {
                workbook.CustomDocumentProperties.Remove(property);
                workbook.CustomDocumentProperties[property].Text = value;

            }
            workbook.Replace("{" + property + "}", value);
            //workbook.Names[workbook.CustomDocumentProperties[property].Name].RefersToRange.Text= workbook.CustomDocumentProperties[property].Text;
            workbook.SaveAs(os);
            workbook.Close();
            workbook = null;
            application = null;
            ms.Close();
            ms.Dispose();
            os.Close();
            os.Dispose();
            return true;

        }

        public string Generate_Excel(string base64, clsDocData docdata)
        {
            ExcelEngine ex = new ExcelEngine();
            IApplication app = ex.Excel;
            MemoryStream ms = new MemoryStream(Helper.EncodeExtensions.DecodeBase642ByteArray(base64));
            IWorkbook workBook = app.Workbooks.Open(ms, ExcelOpenType.Automatic);

            string formattype = "";

            foreach (clsDocValue dv in docdata.DocValues)
            {
                foreach (IWorksheet worksheet in workBook.Worksheets)
                {
                    if (dv.FieldName== "TGEDKNameInhaber")
                    {
                        var a = 0;
                    }
                    try
                    {
                        worksheet.Range[dv.FieldName].Text = dv.Value.ToString();
                    }
                    catch { }   

                    //foreach (IName name in worksheet.Names)
                    //{

                    //    name.Value = dv.Value.ToString();
                    //    Debug.Print(name.Value);
                    //}
                }
            }
           
            MemoryStream destms = new MemoryStream();
            workBook.SaveAs(destms);
            workBook.Close();
            workBook = null;
            ex.Dispose();

            byte[] imageArray = destms.ToArray();

            if (docdata.Result_as_PDF == "True")
            {
                DocGet getdoc = new DocGet("");
                string destdoc = "";
                destdoc = getdoc.Convert_Word_To_PDF(Convert.ToBase64String(imageArray));
                return destdoc;
            }

            return Convert.ToBase64String(imageArray);

        }
    }
}