ASP.NET 中文件的上传下载

在 ASP.NET 中使用 file uploader 实现文件的上传与下载：

File Upload Code

string FilePath = "";
string[] a = new string[1];
string fileName = "";
string FullName = "";
 
if (FileUploader.FileName.Length > 0)
{
     a = FileUploader.FileName.Split('.');
     fileName = Convert.ToString(System.DateTime.Now.Ticks) + "." + a.GetValue(1).ToString();
     FilePath = Server.MapPath(@"~/SavedFolder");
     Fup1.SaveAs(FilePath + @"/" + fileName);
 
     FullName = FilePath + @"/" + fileName;
     // Database Saved Code
}

File Download Code

string filename = "filename from Database";
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", "attachment;filename=" + filename);
string aaa = Server.MapPath("~/SavedFolder/" + filename);
Response.TransmitFile(Server.MapPath("~/SavedFolder/" + filename));
Response.End();

原文：http://www.codeproject.com/Tips/185886/File-Upload-and-Download-in-ASP-NET.aspx