private void setupDocument()
    {
        try
        {
            string documentLanguage = language.Equals("English") ? "English" : "Swedish";
            docName = "~/Media/bookingDocs/" + documentLanguage + "_Doc_" + bookingID + ".docx";
            string generatedFile = HttpContext.Current.Server.MapPath(docName);
            File.Copy(getTemplateFilePath(), generatedFile, true);
            Dictionary<string, string> keyValues = new Dictionary<string, string>();
            keyValues.Add("MainRoomName", doc.MainRoom);
            keyValues.Add("BookingStartEndTime", doc.BookingTime);
            keyValues.Add("TotalGuest", doc.TotalGuest);
            keyValues.Add("BreakfastServingTime", doc.BreakfastServingTime);
            keyValues.Add("LunchServingTime", doc.LunchServingTime);
            keyValues.Add("CoffeServingTime", doc.CoffeServingTime);
            keyValues.Add("CompanyName", doc.CompanyName);

            using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(generatedFile, true))
            {
                var mergeFields = wordDoc.MainDocumentPart.RootElement.Descendants<FieldCode>();
                foreach (KeyValuePair<string, string> keys in keyValues)
                {
                    ReplaceMergeFieldWithText(mergeFields, keys.Key, keys.Value);
                }

                // update lunch room merge field
                ReplaceMergeFieldLunchRooms(mergeFields, "LunchRoomName", doc.ListOfLunchRooms);
                // update mergeField for specialFood
                ReplaceMergeFieldSpecialFood(mergeFields, "BookingSpecialFoodList", doc.ListOfSpecialFood);

                wordDoc.MainDocumentPart.Document.Save();
            }
        }
        catch (Exception exc)
        {
            log.Error(userName + ": Exception in preparePrintDocument setupDocument: " + exc.Message);
            log.Error(userName + ": Exception in preparePrintDocument setupDocument: " + exc.StackTrace);
            throw new Exception(exc.Message);
        }
    }
    private void ReplaceMergeFieldLunchRooms(IEnumerable<FieldCode> fields, string mergeFieldName, List<System.Web.UI.WebControls.ListItem> lunchRoomList)
    {
        try
        {
            var field = fields
                .Where(f => f.InnerText.Contains(mergeFieldName))
                .FirstOrDefault();

            if (field != null)
            {
                // Get the Run that contains our FieldCode
                // Then get the parent container of this Run
                Run rFldCode = (Run)field.Parent;

                // Get the three (3) other Runs that make up our merge field
                Run rBegin = rFldCode.PreviousSibling<Run>();
                Run rSep = rFldCode.NextSibling<Run>();
                Run rText = rSep.NextSibling<Run>();
                Run rEnd = rText.NextSibling<Run>();

                // Get the Run that holds the Text element for our merge field
                // Get the Text element and replace the text content 
                Text t = rText.GetFirstChild<Text>();
                System.Text.StringBuilder sb = new StringBuilder();
                if (lunchRoomList.Count > 0)
                {
                    foreach (System.Web.UI.WebControls.ListItem item in lunchRoomList)
                    {
                        sb.Append(item.Text);
                        sb.Append(Environment.NewLine); 
                    }
                }
                t.Text = sb.ToString();

                // Remove all the four (4) Runs for our merge field
                rFldCode.Remove();
                rBegin.Remove();
                rSep.Remove();
                rEnd.Remove();
            }
        }
        catch (Exception exc)
        {
            log.Error(userName + ": Exception in preparePrintDocument ReplaceMergeFieldWithText: " + exc.Message);
            log.Error(userName + ": Exception in preparePrintDocument ReplaceMergeFieldWithText: " + exc.StackTrace);
            throw new Exception(exc.Message);
        }
    }