c#替换word中的文本并导出（示例）

public ActionResult AsignInfoExport(String editlevel, String applyID) {
            var agent = AgentLevelApplyService.Instance.QueryAgentApplyByApplyID(applyID);
            var path = Server.MapPath("~\\渠道合作协议模板\\渠道合作协议（" + agent.Authlevel + "）.doc");
            Document doc = new Document();
            doc.LoadFromFile(path);
            doc.Replace("{TradeInfo}", agent.TradeInfo, false, false);
            doc.Replace("{AreaInfo}", agent.AreaInfo, false, false);
            var count = AgentLevelApplyService.Instance.QueryAllByDate().Count() + 1;
            string fieldNumber = "D" + LoginUserID + agent.CreateTime.ToString("yyyyMMdd") + count.ToString("D3");
            if (agent.AuthProgress == "已认证") {
                doc.Replace("{FielNumber}", fieldNumber, false, false);
            } else {
                doc.Replace("{FielNumber}", String.Empty, false, false);
            }
            doc.Replace("XXXX有限公司", LoginUserName, false, false);
            var ms = new MemoryStream();
            doc.SaveToStream(ms, Spire.Doc.FileFormat.PDF);
            doc.Close();
            doc.Dispose();
            return File(ms.ToArray(), "application/pdf;charset=utf-8", agent.Authlevel + "协议证书.pdf");
        }