ASP.NETはwordドキュメントのオンラインプレビュー機能コード-word回転Htmlを実現

public void OpenFile()
    {
        Microsoft.Office.Interop.Word.Application wapp = new Microsoft.Office.Interop.Word.Application();   // office     
        wapp.Visible = true;
        object filename = "F:\\word  .doc";
        object isread = false;
        object isvisible = true;
        object miss = System.Reflection.Missing.Value;
        wapp.Documents.Open(ref filename, ref miss, ref isread, ref miss, ref miss, ref miss, ref miss, ref miss,
                            ref miss, ref miss, ref miss, ref isvisible, ref miss, ref miss, ref miss, ref miss);
        wapp = null;
    }


       html  ，                  ，      ：


using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Word = Microsoft.Office.Interop.Word;

public partial class Htmltest : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btn_Click(object sender, EventArgs e)
    {
        WordToHtml("F:\\word  .doc"); 
    }

    /// 

    /// word  html
    /// 
    /// 
    private string WordToHtml(object wordFileName)
    {
        //               
        Word.ApplicationClass word = new Word.ApplicationClass();
        Type wordType = word.GetType();
        Word.Documents docs = word.Documents;
        //    
        Type docsType = docs.GetType();
        Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] 
　　　　　　　　　　　　　　　　{ wordFileName, true, true });
        //    ，   
        Type docType = doc.GetType();
        string wordSaveFileName = wordFileName.ToString();
        string strSaveFileName = wordSaveFileName.Substring(0, wordSaveFileName.Length - 3) + "html";
        object saveFileName = (object)strSaveFileName;
        docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] 
　　　　　　　　　　　　　　{ saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML });
        docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);
        //   Word
        wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);
        return saveFileName.ToString();
    }
}