The Reconnect is an Operation Component used to modify the association between instances of two entities (the Source Entity and the Target Entity), connected by a predefined Relationship Role. The Reconnect can manage single instances or sets of instances in order to connect or disconnect one in...

The Parameter Collector Operation permits one to collect a set of parameters from multiple sources and to redistribute them to multiple targets. In this way, the operation reduces the model complexity by deleting some data flows, improving its reading and creating a neater model.

The Jump Operation permits to jump forward and backward within the application without modeling an explicit navigation flow. A forward jump redirects the user to the specified Parameter Collector Operation. A backward jump redirects the user to the last visited Jump Operation and follows that operat...

Sometimes may happens that a user has to access to a content and depending on some parameters or actions that content has to change. By the alternative pages,it's possible to decide which content has to be shown depending on one or more conditions defined at run time. Alternative element is usefu...

WebRatio introduced the chance to use Visibility Conditions in a Web Project. This feature allows you to disable or show elements in the generated Web application if the conditions specified for those elements are verified. It is now possible to integrate the horizontal profiling of the Web appli...

Reloading an entire page can be expensive in terms of computational costs: it means recomputing all the components contained on a page and the queries included in them. This operation can take some time and have a significant impact on performance. For this reason, a partial refresh of the page can ...

Popups are a commonly used rich interaction. By using a popup you can open a new layer above the current main page. If the popup is set as “Modal”, it also prevents any interaction with the rest of the web application. When the popup window is closed, the underlying main page becomes active again, a...

Rich forms are forms in which the user interaction triggers an event and the execution of a specific business logic. The aim is facilitate the form compilation and improve the user’s experience in the web Application. Many events can be managed to enrich the user’s interaction with a form, and some ...

Autocompletion allows you to specify an information source to be used as a suggestion for the fill-in of a text field. In this way, the user can type only the initial letters of the word or of the value to be inserted in the field. The Web application shows different options from which the user can ...

The Domain Model Utility Component is available starting from the WebRatio 5.1 version. It's a hybrid unit, which means that it can be placed in every View (Site View, Module Definitions View, Service View). It permits to retrieve information about entities and relationship of the Domain Model....

The "java.lang.ClassFormatError: Invalid method Code length" error, is an error that you can get generating the layout of your Web Project, it means that you used a template in the Web Project that is too large to be compiled. Read this article to discover more about how to handle and prevent this ...

The UnsupportedClassVersionError can occurr in a Web Project that uses custom components, such as custom validation rules, servlets or listeners. All these components are developed using a different project (e.g. a Java project) in which you have to compile the Java classes and create a jar file...

The purpose of this article is to provide the basics to operate with styles in WebRatio. A Style Project contains the layout templates needed to generate the graphical elements of your Web Application; the project includes also the resources used in the templates.

An important aspect of a Web Application is the visual identity it has. The Visual Identity represents all the graphic widgets that you may want to use in order to make the Web Application good looking and in order to have a great user experience. Since it's possible to specify a personalized ...

The Layout View lets you organize view components in the page using the 960 Grid System. The 960 Grid System (http://960.gs) is very popular CSS framework for defining page layout and is known for its ease and flexibility. The framework is a set of style sheets with CSS rules. It provides two grids:...