gridview按钮列的下载功能

weixin_30617737

于 2010-11-10 19:09:00 发布

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原文链接：http://www.cnblogs.com/tianguook/archive/2010/11/10/1874130.html

本文介绍了一个ASP.NET中实现文件下载的方法，包括通过GridView触发下载事件的具体代码实现。此外，还提到了当GridView位于UpdatePanel内时所需配置的额外步骤。

    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        //这里是模板列里面的按钮，需要设置CommandArgument ="<%# GridView1.Rows.Count %>"，否则出错
        if (e.CommandName == "Download")
        {
            FileDownload(@"F:\music\6-渴望.mp3");
        }
    }

    private void FileDownload(string FullFileName)
    {
        FileInfo DownloadFile = new FileInfo(FullFileName);
        Response.Clear();
        Response.ClearContent();
        Response.ClearHeaders();
        Response.Buffer = false;
        Response.ContentType = "application/octet-stream";
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF8));
        Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
        Response.AddHeader("Content-Transfer-Encoding", "binary");
        Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
        Response.WriteFile(DownloadFile.FullName);
        Response.Flush();
        Response.End();
    }