文件上传、下载和管理!

Question

<input id="file1" type="file" name="file1" runat="server">
<asp:button id="btn_upload" runat="server" Text="上传"></asp:button>private void btn_upload_Click(object sender, System.EventArgs e)
{
string spath = Server.MapPath(".")+"\\Upload";
try
{
if(Directory.Exists(spath))
Directory.Delete(spath,true);
Directory.CreateDirectory(spath); string filename = file1.PostedFile.FileName;
if(filename != "")
{
filename = filename.Substring(filename.LastIndexOf("\\")+1);
file1.PostedFile.SaveAs(Path.Combine(spath,Path.GetFileName(filename)));
} this.Response.Write("<script>alert('上传完成！')</script>");
}
catch(Exception ex)
{
this.Response.Write("<script>alert('上传失败！')</script>");
}
}

Answer 1

this.hldown.NavigateUrl = "./upload/" + 文件名+".doc";
this.hldown.Visible = true;