在ASP.NET 2.0中直接得到本页面生成的HTML代码

来源：互联网发布：the eric python ide 编辑：程序博客网时间：2024/04/30 03:30

在ASP.NET 2.0中，有时候需要对ASP.NET生成的HTML代码进行处理，或者是保存成静态文件。ASP.NET 提供了直接将请求保存成文件的方法：HttpRequest.SaveAs方法。下面这个方法就是在ASP.NET 2.0中得到ASP.NET生成的HTML代码，同时，生成一个静态文件的方法。

<%@ Page Language="C#" AutoEventWireup="true" %>

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
  // 计算数据，完全可以从数据看取得
   ICollection CreateDataSource( )
   {
     System.Data.DataTable dt = new System.Data.DataTable();
     System.Data.DataRow dr;
     dt.Columns.Add(new System.Data.DataColumn("学生班级", typeof(System.String)));
     dt.Columns.Add(new System.Data.DataColumn("学生姓名", typeof(System.String)));
     dt.Columns.Add(new System.Data.DataColumn("语文", typeof(System.Decimal)));
     dt.Columns.Add(new System.Data.DataColumn("数学", typeof(System.Decimal)));
     dt.Columns.Add(new System.Data.DataColumn("英语", typeof(System.Decimal)));
     dt.Columns.Add(new System.Data.DataColumn("计算机", typeof(System.Decimal)));

    for (int i = 0 ; i < 50 ; i++)
     {
       System.Random rd = new System.Random(Environment.TickCount * i); ;
       dr = dt.NewRow();
       dr[0] = "班级" + i.ToString();
       dr[1] = "【孟子E章】" + i.ToString();
       dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);
       dr[3] = System.Math.Round(rd.NextDouble() * 100, 2);
       dr[4] = System.Math.Round(rd.NextDouble() * 100, 2);
       dr[5] = System.Math.Round(rd.NextDouble() * 100, 2);
       dt.Rows.Add(dr);
     }
     System.Data.DataView dv = new System.Data.DataView(dt);
    return dv;
   }

   protected void Page_Load( object sender, EventArgs e )
   {
    if (!IsPostBack)
     {
       GridView1.DataSource = CreateDataSource();
       GridView1.DataBind();
     }
   }

   protected override void Render( HtmlTextWriter writer )
   {
     System.IO.StringWriter html = new System.IO.StringWriter();
     System.Web.UI.HtmlTextWriter tw = new System.Web.UI.HtmlTextWriter(html);
     base.Render(tw);
     System.IO.StreamWriter sw;
     sw = new System.IO.StreamWriter(Server.MapPath("a.htm"), false, System.Text.Encoding.Default);
     sw.Write(html.ToString());
     sw.Close();
     tw.Close();
     Response.Write(html.ToString());
   }
script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>得到ASP.NET生成的HTMLtitle>
head>
<body>
  <form id="Form1" runat="server">
    <asp:GridView ID="GridView1" runat="server" Font-Size="12px" BackColor="#FFFFFF"
       GridLines="Both" CellPadding="4" Width="560">
      <HeaderStyle BackColor="#EDEDED" Height="26px" />
    asp:GridView>
  form>
body>
html>

VB.NET

<%@ Page Language="VB" %>
DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
   Function CreateDataSource() As ICollection
     Dim dt As System.Data.DataTable = New System.Data.DataTable
     Dim dr As System.Data.DataRow
     dt.Columns.Add(New System.Data.DataColumn("学生班级", GetType(System.String)))
     dt.Columns.Add(New System.Data.DataColumn("学生姓名", GetType(System.String)))
     dt.Columns.Add(New System.Data.DataColumn("语文", GetType(System.Decimal)))
     dt.Columns.Add(New System.Data.DataColumn("数学", GetType(System.Decimal)))
     dt.Columns.Add(New System.Data.DataColumn("英语", GetType(System.Decimal)))
     dt.Columns.Add(New System.Data.DataColumn("计算机", GetType(System.Decimal)))
     Dim i As Integer = 0
     For i = 0 To 50 - 1
       Dim rd As System.Random = New System.Random(Environment.TickCount * i)
       dr = dt.NewRow
       dr(0) = "班级" + i.ToString
       dr(1) = "【孟子E章】" + i.ToString
       dr(2) = System.Math.Round(rd.NextDouble * 100, 2)
       dr(3) = System.Math.Round(rd.NextDouble * 100, 2)
       dr(4) = System.Math.Round(rd.NextDouble * 100, 2)
       dr(5) = System.Math.Round(rd.NextDouble * 100, 2)
       dt.Rows.Add(dr)
     Next
     Dim dv As System.Data.DataView = New System.Data.DataView(dt)
     Return dv
   End Function

   Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
     If Not IsPostBack Then
       GridView1.DataSource = CreateDataSource()
       GridView1.DataBind()
     End If
   End Sub

   Protected Overloads Overrides Sub Render(ByVal writer As HtmlTextWriter)
     Dim html As System.IO.StringWriter = New System.IO.StringWriter
     Dim tw As System.Web.UI.HtmlTextWriter = New System.Web.UI.HtmlTextWriter(html)
     MyBase.Render(tw)
     Dim sw As System.IO.StreamWriter
     sw = New System.IO.StreamWriter(Server.MapPath("a.htm"), False, System.Text.Encoding.Default)
     sw.Write(html.ToString)
     sw.Close()
     tw.Close()
     Response.Write(html.ToString)
   End sub
script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>得到ASP.NET生成的HTMLtitle>
head>
<body>
  <form id="Form1" runat="server">
    <asp:GridView ID="GridView1" runat="server" Font-Size="12px" BackColor="#FFFFFF"
       GridLines="Both" CellPadding="4" Width="560">
      <HeaderStyle BackColor="#EDEDED" Height="26px" />
    asp:GridView>
  form>
body>
html