Question

there is a smooth way to open a static html string from code behind whitout writing it to a file? At the moment i'm doing something like below:

 using (StreamWriter sw = new StreamWriter("\\mypath\\test.html",false))
 {
      sw.Write(my_html_string); //I build 'my_html_string' inside the code
 }
 Response.Redirect("http://mysite/mypath/test.html");

but what i'd like to do is something like:

Page.Show(my_html_string);

without wasting time writing it to a file.

Thanks,

Answer 1

最原始的方法是通过IHttpHandler。

在Visual Studio中，通过菜单：“添加”>“新项目...”>“通用处理程序”。
您最终得到一个.ashx和一个相应的.ashx.cs代码隐藏文件，您可以在其中编写代码。

您导航到http://yourwebite/<nameOfYourHttpHandler>.ashx以查看呈现的html。
HttpHandler可以是路由的一部分，也可以接受查询字符串参数。

MyHandler.ashx

<%@ WebHandler Language="C#" CodeBehind="MyHandler.ashx.cs" Class="PFX.MyHandler" %>

MyHandler.ashx.cs

using System;
using System.Web;

namespace PFX
{
    public class MyHandler : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            // Implement logic to build your html string here.
            String html = "<html><head></head><body><b>foobar</b></body></html>";

            // Set any appropriate http-headers here.
            context.Response.ContentType = "text/html";            
            context.Response.Write(html);
        }

        public Boolean IsReusable
        {
            get { return false; }
        }
    }
}

==按LEGION编辑==

上面的代码可以完美地工作，但是如果您需要将以前的ASPX页面的某些值传递给处理程序（如我），则需要执行以下操作：

previousPage.aspx.cs

protected void MyButton_Click(object sender, EventArgs e)
{
     String my_html_string = string.empty;
     //Code that build the html String
     HttpContext.Current.Application["my_key_name"] = my_html_string;
     Response.Redirect("~/myHandler.ashx");
}

MyHandler.ashx.cs

public class MyHandler : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/html";
            context.Response.Write(context.Application["my_key_name"]);
        }

        public Boolean IsReusable
        {
            get { return false; }
        }
    }

Open a static Html string (builded up at runtime) from code behind

1 个答案: