The Periodical Page Refresh is a feature that allows you to add a trigger to a navigation flow with the selective refresh enabled. In this way, it’s possible to automate clicking on a link to update some information in real time. This feature is very useful when you need to execute a business logic ...

The Excel Style is a predefined style available in WebRatio Platform. This style allows to export the content of a modeled page in an Excel spreadsheet file. The generation process creates a JSP page containing XML code that is processed by a custom tag that invokes the Apache POI engine to render t...

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....

Tomcat Application Server is able to manage by default all the ISO-8859-1 characters to encode URIs. If your Application uses characters that does not belong to this character set, you have to configure the Application Server or your Application in order to correctly manage them. If not config...

Let's suppose that you want to deploy your project directly on the remote host that will contain the Web Application. You have to configure the Deploy Configuration that allows you to obtain the final Web Application package in order to be able also to upload the package on the remote host. This art...

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:...

Showing more than one component as a single one is a very common need that may occur while creating the style of a WebRatio Web application. The first option to achieve this is to use the customization available from the Layout View of the specific page, which offers a wide set of criteria to pla...

In WebRatio it's possible to create URLs dinamically using a Script Utility Component. Learn how to do it reading this article.

The WebRatio variables allow to configure the folder in which the Web Application of a Web Project will be generated when one of the following commands is used: Generate Full Web Project, Generate Selection, Generate Logic Descriptor Only, Generate Layout Pages Only. This articles describe which are...

WebRatio allows the user to define Context Parameters and to add Variables, these model elements are used to accomplish different tasks. Context Parameters are strictly related to session storage, as they save information in the sessionContext and make their content available for all the JSP sessio...

The WebRatio pageContext is a particular data structure which is created everytime the user performs a request in a WebRatio generated Web application. It's a map that contains information used in the computation of all the Units contained in the requested destination page and it is stored in the JS...