Complete File Upload Example from Microsoft

FileUpload.cs.aspx

<%@ Import Namespace="System"%>
<%@ Import Namespace="System.IO"%>
<%@ Import Namespace="System.Net"%>
<%@ Import NameSpace="System.Web"%>
<Script language="C#" runat=server>
/*
//Test code
byte[] responseArray = myWebClient.UploadFile(uriString,fileName);
Console.WriteLine("{0}",System.Text.Encoding.ASCII.GetString(responseArray));
// ... or simple curl
// curl -F filedata=@grumpy-cat-no-1.jpg http://helloworld.com/testupload
*/
void Page_Load(object sender, EventArgs e) {
	foreach(string f in Request.Files.AllKeys) {
		HttpPostedFile file = Request.Files[f];
		file.SaveAs("d:\\test\\UploadedFiles\\" + file.FileName);
	}	
}
</Script>