将ASP.NET Control转换为String_[Asp.Net教程]                                           					
下面的类可以实现将ASP.NET的Control(包括aspx页面)转换成String字符串,可以用于:  
1.用邮件发送ASP.NET的内容  
2.用XSLT转换页面的输出  
3.ASPX页面的全局字符串的使用  
C#代码 
复制C#代码保存代码using System;
using System.IO;
using System.Text;
using System.Web;
using System.Web.UI;
public class Render
{
    public static string RenderControl(System.Web.UI.Control control)
    {
        StringBuilder result = new StringBuilder(1024);
        control.RenderControl(new HtmlTextWriter(new StringWriter(result)));
        return result.ToString();
    }
    public static string RenderControl(System.Web.UI.TemplateControl control)
    {
        StringBuilder result = new StringBuilder(1024);
        control.RenderControl(new HtmlTextWriter(new StringWriter(result)));
        return result.ToString();
    }
    public static string RenderPage(string pageLocation)
    {
        System.Web.HttpContext context = System.Web.HttpContext.Current;
        StringBuilder result = new StringBuilder(1024);
        context.Server.Execute(pageLocation, new HtmlTextWriter(new StringWriter(result)));
        return result.ToString();
    }
}
VB.NET代码 
复制VB.NET代码保存代码Imports System
Imports System.IO
Imports System.Text
Imports System.Web
Imports System.Web.UI
Public Class Render
    Public Shared Function RenderControl(ByVal control As System.Web.UI.Control)_
      As String
        Dim result As StringBuilder = New StringBuilder(1024)
        control.RenderControl(New HtmlTextWriter(New StringWriter(result)))
        Return result.ToString()
    End Function
    Public Shared Function RenderControl(ByVal control As System.Web.UI.TemplateControl)_
      As String
        Dim result As StringBuilder = New StringBuilder(1024)
        control.RenderControl(New HtmlTextWriter(New StringWriter(result)))
        Return result.ToString()
    End Function
    Public Shared Function RenderPage(ByVal pageLocation As String) As String
        Dim context As System.Web.HttpContext = System.Web.HttpContext.Current
        Dim result As StringBuilder = New StringBuilder(1024)
        context.Server.Execute(pageLocation, _
            New HtmlTextWriter(New StringWriter(result)))
        Return result.ToString()
    End Function
End Class
来源:阿良.NET