In Apache Wicket, so-called models are used to link the data and the representation in the graphical user interface. If models aren't used, one will never see the new value as during construction a fixed value is used. The GUI element will not look for a new value during a second rendering.

The situation can be corrected by passing a model to the used GUI element (e.g. ba passing the model to the GUI element's constructor).


Values not updated in the GUI frontend of a JEE application using the Apache Wicket framework

I am using the Apache Wicket 6.0 framework as the GUI framework in my web application. I have the following problem: after changing the data, the value displayed in the text field does not change according to the data that has been entered respectively calculated after entering it and pressing a button to perform a calculation. Unfortunately, I have to refresh the site. Why does this behavior occur?

Use automated UI Test, which is possible with the Selenium library and a browser driver. The browser driver allows us to run actions in a browser while writing code. The Selenium library is an interface to connect many browsers with the same code base. So now we are able to code a simple test, where a robot is automatically clicking through the website and trying out the login functionality. This technique may also apply to test other important and high priority UI features.


Testing with MonkeyRunner

We used an automatic Gui Testing tool for android apps. We had a emulator for an tablet running on an laptop and tried to test our app. The problem was that the runs were sometimes successful and sometimes not with the same code.

Effects for Web Pages

In the 1990s web pages were really boring because they offered only static content that did not interact with the user's actions. Nowadays, thanks to technologies like AJAX and Flash we have the possibility to enhance websites with stunning effects and interactivity. <strong>Challenge:</strong> <ul> <li>Find an easy way of adding stunning effects and interactivity to your web page.</li> </ul>

Add a custom Ribbon to a database in Access 2007

Ribbon was introduced in Microsoft Office 2007 as part of its "Fluent User Interface" and has became a well known and quite often used part of graphical user interface of applications (specifically on MS Windows). In MS Access prior the 2007 version the user interface of an database application was implemented by standard GUI elements such as forms, buttons, menus and context menus. The users of MS Office 2007 are used to work with Ribbon and are familiar with its advantages e.g. its shortcut system, we want to provide them with a custom Ribbon interface of Access 2007 database application.
Subscribe to GUI