Question

asp.net下载功能无法实现

代码：linkbutton添加了tooltip控件存储路径和文件名（如../a/test/doc）
protected void LinkButton1_Click1(object sender, EventArgs e)
{
LinkButton l = sender as LinkButton;
DownLoad(l);
}
public void DownLoad(LinkButton l)
{
string filepath = Server.MapPath("~") ;
if (System.IO.File.Exists(filepath))
{
FileInfo file = new FileInfo(filepath +"/"+ l.ToolTip.Substring(2, l.ToolTip.Length - 2));
Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
Response.AddHeader("Content-Disposition", "attachment;filename="+file.Name);
Response.AddHeader("Content-Disposition", file.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.WriteFile(file.FullName);
Response.End();
}
}
可是点击下载没有反应，好像只是刷新了一下页面

Answer 1

完整的下载类可以去粗蔽http://zhidao.baidu.com/question/549688673?&oldq=1 看烂唯一下饥凳培。。。封装出了一个类。直接使用就可以。。。