HttpRequest.Files Property

The file collection is populated only when the HTTP request Content-Type value is "multipart/form-data".

The following code example displays the names of all files in the Files collection.

int loop1;
HttpFileCollection Files;

Files = Request.Files; // Load File collection into HttpFileCollection variable.
arr1 = Files.AllKeys;  // This will get names of all files into a string array. 
for (loop1 = 0; loop1 < arr1.Length; loop1++) 
{
    Response.Write("File: " + Server.HtmlEncode(arr1[loop1]) + "<br />");
    Response.Write("  size = " + Files[loop1].ContentLength + "<br />");
    Response.Write("  content type = " + Files[loop1].ContentType + "<br />");
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Reference