如何生成word文档的源码

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Word;

namespace WebApplication2
{
/// <summary>
/// WebForm1 的摘要说明。
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox SaveAs;
protected System.Web.UI.WebControls.Label Label2;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Label result;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.TextBox wordText;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
}

#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

private void Button1_Click(object sender, System.EventArgs e)
{
Object Nothing=System.Reflection.Missing.Value;
object filename=@SaveAs.Text;
Word.Application WordApp=new Word.ApplicationClass();
Word.Document WordDoc=WordApp.Documents.Add(ref Nothing,ref Nothing,ref Nothing,ref Nothing);
Word.Table table=WordDoc.Tables.Add(WordApp.Selection.Range,1,1,ref Nothing,ref Nothing);
table.Cell(1,1).Range.Text=wordText.Text;
WordDoc.Paragraphs.Last.Range.Text="Wellcome To Aspxcn.Com";
WordDoc.SaveAs(ref filename,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing,ref Nothing);
WordDoc.Close(ref Nothing, ref Nothing, ref Nothing);
WordApp.Quit(ref Nothing, ref Nothing, ref Nothing);
result.Text="文档路径：<a href='"+SaveAs.Text+"'>"+SaveAs.Text+"</a>(点击链接查看)<br>生成结果：成功！";
}
}

}

在web.config中要设置权限。

windows+R----->......
windows+R----->dcomcnfg------>我的电脑----->microsoft word文档------>属性------>安全性------>访问控制