实现动态添加数据打印word预览

  /// <summary>
        /// 实现动态添加数据打印预览
        /// </summary>
        /// <param name="path">word模板路径</param>
        /// <param name="pathprint">word打印路径</param>
        public void PrintPreview(string path, string pathprint)
        {
            WordApplication word = null;
            Document doc = null;
            Document printDoc = null;
            object oMissing = System.Reflection.Missing.Value;
            object oMissing2 = System.Reflection.Missing.Value;

            if (word == null)
            {
                word = new WordApplication();
            }
            object path1 = (object)path;
            object path2 = (object)pathprint;

            doc = word.Documents.OpenOld(ref path1, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing);
            printDoc = word.Documents.OpenOld(ref path2, ref oMissing2, ref oMissing2, ref oMissing2, ref oMissing2, ref oMissing2, ref oMissing2, ref oMissing2, ref oMissing2, ref oMissing2);
            printDoc.Content.Text = null;//清空word打印
            doc.Content.Copy(); //复制doc里的内容,doc是每次做替换书签的文档.
            object save = false;
            doc.Close(ref save, ref oMissing, ref oMissing); //关闭doc.
            Range range = printDoc.Content; //全中printDoc里的全部内容,printDoc是目标保存文档.
            range.Collapse(ref oMissing);
            range.Paste();
            try
            {
                #region 替换书签

                foreach (Bookmark BM in printDoc.Bookmarks)
                {
                    switch (BM.Name)
                    {

                        case "姓名":
                            BM.Select();
                            BM.Range.Text = "xxxxxx";
                            break;
                        case "性别":
                            BM.Select();
                            BM.Range.Text = "男";
                            break;
                    }
                }

                #endregion
                word.Visible = true;
                printDoc.PrintPreview();
            }

            catch (Exception ex)
            {
                object save2 = false;
                printDoc.Close(ref save2, ref oMissing2, ref oMissing2); //关闭doc.
                MessageBox.Show(ex.Message.ToString());
            }
        }