ASP.NET.in.a.Nutshell.Second.Edition [Electronic resources] نسخه متنی

The HttpPostedFile class allows you to easily
manipulate files that are uploaded by the client. An
HttpPostedFile instance is provided by the
PostedFile property of the
System.Web.UI.HtmlControls.HtmlInputFile control.

You can use the SaveAs( ) method to save a posted
file to disk synchronously. The method will return once the file is
completely uploaded. Alternatively, you can get a
System.IO.Stream object containing the file from
the InputStream property and use it to work with
the file asynchronously (while it is being uploaded).

public sealed class 
HttpPostedFile  {
// Public Instance Properties
public int 
ContentLength {get; }
public string 
ContentType {get; }
public string 
FileName {get; }
public Stream 
InputStream {get; }
// Public Instance Methods
public void 
SaveAs (string 
filename );
}

Returned By

HttpFileCollection.{Get( ),
this},
System.Web.UI.HtmlControls.HtmlInputFile.PostedFile