Default property that indexes through the collections: QueryString, Form, Cookies, ClientCertificate and ServerVariables
[C#] In C#, this member is the indexer for the HttpRequest class.
[Visual Basic] Public Default ReadOnly Property Item( _ ByVal key As String _ ) As String [C#] public string this[ string key ] {get;} [C++] public: __property String* get_Item( String* key ); [JScript] returnValue = HttpRequestObject.Item(key); -or- returnValue = HttpRequestObject(key);
[JScript] In JScript, you can use the default indexed properties defined by a type, but you cannot explicitly define your own. However, specifying the expando attribute on a class automatically provides a default indexed Item property whose type is Object and whose index type is String.
HttpRequest Class | HttpRequest Members | System.Web Namespace