如何在asp.net C＃网站下载 [英] how to download in asp.net C# website

问题描述

如何在asp.net C＃网站下载？请输入代码和命名空间。

how to download in asp.net C# website? please type with code and namespace.

推荐答案

这个问题毫无意义。您不需要代码来提供从网站下载，您只需要一个指向该文件的链接。您可以编写将文件写入Response对象的代码，如果需要，可以在您的书籍或在线中轻松找到该代码。

This question makes no sense. You don''t need code to offer a download from a website, you just need a link to the file. You can write code that writes a file to the Response object, that code is easy to find in your books or online if you need it.

 public static string ServerMapPath(string path)
    {
        return HttpContext.Current.Server.MapPath(path);
    }
    public static HttpResponse GetHttpResponse()
    {
        return HttpContext.Current.Response;
    }
    public static void DownLoadFileFromServer(string fileName)
    {
        //This is used to get Project Location.
        try
        {
            string filePath = ServerMapPath(fileName);
            //This is used to get the current response.
            HttpResponse res = GetHttpResponse();
            res.Clear();
            res.AppendHeader("content-disposition", "attachment; filename=" + filePath);
            res.ContentType = "application/octet-stream";
            res.WriteFile(filePath);
            res.Flush();
            res.End();
        }
        catch (Exception ex)
        {
           
        }
    }

 protected void Button2_Click(object sender, EventArgs e)
    {
DownLoadFileFromServer("~/Storage/" + txtname.Text);
}

文件需要在某个文件夹的同一个网站目录中int这个案例文件夹名称是存储

file need to be in same directory of website in some folder int this case folder name is Storage

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