Exsys Corvid "How To"

These "How To" documents explain in detail how to implement some of the more advanced functionality in Corvid systems. Each has a PDF document that describes specifics. Where practical, there is also a demo system you can run to see the technique in action, along with its sample code. In many cases, the sample code can even be downloaded and merged into your system to add the functionality.

If this does not answer your question, Corvid users with Support and Maintenance Contracts should contact us for more details and assistance.

How To	Instructions	Link to Demo System	Download Demo Files
Building WINK "What I Need to Know" Site Guides Build a virtual concierge for complex web sites to dynamically build a custom page of content and links based on the visitor's interests.
Automatically Save User Input to a Database Build systems that automatically save all user input to a database, allowing the user to exit a run at any point and restart later where they left off. Explains how to use this approach for both Applet and Servlet Runtimes.
Add a Button to Save User Data and Exit a Run Allow the user to exit a session by clicking on a "Save" button that will save their input and exit the session. This is used when saving data after every question is impractical. Explains how to use this approach for both Applet and Servlet Runtimes.			Applet Servlet
Save User Input to a File When Running as an Application Use to save user input when running stand-alone rather than online applications.
Techniques for Interfacing to Databases Various ways to interface to a database to read and write data.
Options in Running a System During Development Testing Various way to test run a system and how to use the Properties options.
Using Cascading Style Sheets (CSS) with Corvid Servlet Templates Ways to apply CSS to control the look-and-feel of a system delivered with the Corvid Servlet Runtime.
Creating a Desktop Shortcut to Run a Corvid System Standalone Setting up the Java parameters to build a shortcut that will call Java to run a Corvid system as an application.
Designing Systems to Run in a Kiosk Environment Creating controls that can be run using a touch-screen, including emulating a keyboard in Corvid.
Displaying Instructional "Helper Pages" Using Frames (Applet Runtime) Display an HTML page of instructions, explanation or reference material that may be needed to answer a question.
Displaying Instructional "Helper Pages" Using Frames (Servlet Runtime) Display an HTML page of instructions, explanation or reference material that may be needed to answer a question.
Obtaining a Continuous Value from Image Maps Using an image map to represent one or two dimensional ranges of values. The spot where the user clicks is returned as a value proportionately indicating where on the map they clicked. This allows some of the functionality of a "slider bar" to be added to a system.
Setting the Dynamic List Variable Value List from a Database Initializing the values that can be selected from a Dynamic List by using a database call.
Using JavaScript in Servlet Templates for Special Effects Using Javascript to validate input, position the cursor and perform other actions.
Expanding the Applet Tag to Fill the Window Explains settings that will make the applet window fill the entire browser window. This allows an system running with the Applet Runtime to look much more like a Serlvet Runtime system.