我在C#中嵌入了word，求助，如何在修改，可以使得文档，保存，修改！
代码如下，附件如下：
using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Reflection;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private Object oDocument;

        public Form1()
        {
            InitializeComponent();
            this.axWebBrowser1.NavigateComplete2 += new AxSHDocVw.DWebBrowserEvents2_NavigateComplete2EventHandler(this.axWebBrowser1_NavigateComplete2);
            this.Load += new System.EventHandler(this.Form1_Load);
            this.Closed += new System.EventHandler(this.Form1_Closed);
                    

        }

        private void button1_Click(object sender, System.EventArgs e)
        {

            String strFileName;

            //Find the Office document.
            openFileDialog1.FileName = "";
            openFileDialog1.ShowDialog();
            strFileName = openFileDialog1.FileName;

            //If the user does not cancel, open the document.
            if (strFileName.Length != 0)
            {
                Object refmissing = System.Reflection.Missing.Value;
                oDocument = null;
                axWebBrowser1.Navigate(strFileName, ref refmissing, ref refmissing, ref refmissing, ref refmissing);
            }
        }

        public void Form1_Load(object sender, System.EventArgs e)
        {
            button1.Text = "Browse";
            openFileDialog1.Filter = "Office Documents(*.doc, *.xls, *.ppt)|*.doc;*.xls;*.ppt";
            openFileDialog1.FilterIndex = 1;
        }

        public void Form1_Closed(object sender, System.EventArgs e)
        {
            oDocument = null;
        }

        public void axWebBrowser1_NavigateComplete2(object sender, AxSHDocVw.DWebBrowserEvents2_NavigateComplete2Event e)
        {

            //Note: You can use the reference to the document object to
            //      automate the document server.

            Object o = e.pDisp;

            oDocument = o.GetType().InvokeMember("Document", BindingFlags.GetProperty, null, o, null);

            Object oApplication = o.GetType().InvokeMember("Application", BindingFlags.GetProperty, null, oDocument, null);

            Object oName = o.GetType().InvokeMember("Name", BindingFlags.GetProperty, null, oApplication, null);

           //MessageBox.Show("File opened by: " + oName.ToString());
        }

        private void axWebBrowser1_Enter(object sender, EventArgs e)
        {

        }
                    
    }
}