PRADO 3.1.1 is released

[Qiang]

We are proud to announce the formal release of PRADO 3.1.1. This is a feature enhancement release over the previous release. In this release, we included several new commonly requested Web controls; we enhanced the features of existing components; and we added translations in several languages to our tutorials.

WHAT'S NEW IN THIS RELEASE

* Added a new control TTabPanel that displays tabbed views.
* Added a new control TKeyboard that displays a virtual keyboard for text input.
* Added a new control TCaptcha that displays a CAPTCHA to keep spammers from signing up for certain accounts online. A related  validator TCaptchaValidator is also implemented.
* Added a new control TSlider that displays a slider which can be used for numeric input.
* Added a new control TConditional that conditionally displays one of the two kinds of content.
* Added Oracle DB support to Active Record.
* Added support to TDataGrid to allow grouping consecutive cells with the same content.
* Added support to allow configuring page properties and authorization rules using relative page paths in application and page configurations. Added support to allow authorization based on remote host address.
* Added a new page state persister TCachePageStatePersister. It allows page state to be stored using a cache module (e.g. TMemCache, TDbCache, etc.)
* Added support to the auth framework to allow remembering login.
* Added support to display a prompt item in TDropDownList and TListBox (something like 'Please select:' as the first list item.)
* Added support to column mapping in Active Record.

COMPATIBILITY INFORMATION

Please see the upgrade instructions included in the release. The following changes introduced in this release need particular attention:

* The RELATIONS declaration in Acive Record classes is changed from "protected static $RELATIONS" to "public static $RELATIONS".
* IFeedContentProvider adds a new method: getContentType(). This affects any class implementing this interface.
* IUserManager adds two new methods: getUserFromCookie() and saveUserToCookie(). This affects classes that implements this interface and does not extend from TUserManager.
* TDropDownList will be in an unselected state if no initial selection is specified. That is, its SelectedIndex will be -1. Previously, the first item will be considered as selected.