Moving a Commercial ASP.NET Application to Silverlight Jeffrey M. Rhodes Platte Canyon Multimedia Software Corporation
Moving a Commercial ASP.NET Application to Silverlight Jeffrey M. Rhodes Platte Canyon Multimedia Software Corporation.
Dec 20, 2015
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Moving a Commercial ASP.NET Application to Silverlight
Jeffrey M. Rhodes
Platte Canyon Multimedia Software Corporation
Product Objectives
Provide the power of ASP.NET but with no programming or advanced configuration
Store questions and objectives in SQL Server, Access, or XML
Create exams composed of questions pulled randomly by objective from a pool
Create exams that support the SCORM 1.2/2004 Runtime Environment and packaging specification (can’t do the latter currently)
Make it easy for Subject Matter Experts to edit questions
Version 2 Demo
QuestionWeb Player
Graphical Button
What are the Problems?
Requires ASP.NET virtual directoryPrevents complete SCORM compliancy
Has limited question types (multiple choice, true-false, fill-in-the-blank) due to databinding approach
Has frequent postbacks that are frustrating to users with slow connections
Difficult for users to customize
Why Silverlight?
Easy to play media and display graphics
Has power to perform more complex actions like drag & drop and drawing lines
Does not require a virtual directory
Allows reuse of much existing “Question” object functionality
Considered implementing in Flash using existing Flash “Learning Interactions” but these are limited to ActionScript version 2
Security model more conducive to web services than Flash
Version 3 DemoPage.xaml
matching_lines.xaml
Edit Resources/Templates in Expression Blend
Deployment and .xap
Content rather than resources so can add to the .xap programmatically without rebuilding DLL
Key Programming Tasks
Navigate between questionsDave Relyea’s Transition Control
Display graphic
Play mediaSimilar to graphic but don’t need to create object
Key Programming Tasks
Configure buttons with graphics and textSet Content to be a new StackPanel
Key Programming Tasks
Time questionsImplement at QuestionTemplate level
Key Programming Tasks
Communicate with an LMS via JavaScriptWindow.Invoke() for calling JavaScript function
Window.Eval() for injecting complete JavaScript calls
Key Programming Tasks
“Server-side” tasks: email, save resultsWCF web service
Create “Rollover” ButtonCustom component implemented with VisualStateManager
Key Programming Tasks
Feedback/Challenges
Feedback: extremely positive so far with customers like Exxon/Mobile and Motorola eagerly waiting for release
Challenge: creating new templates eased with Blend but still challenging for non-programmer due to necessity to work with “code-behind” file and build DLL
Harder than opening Flash .fla and saving as a new name
Challenge: dependent on corporate acceptance of Silverlight
Rest of the Puzzle
Dave Relyea’s Transition Control: http://tinyurl.com/57bwh4
Delay’s HtmlTextBlock: http://tinyurl.com/d8m23s
Sample Exam: http://www.examengine.net/ExamEngine3
Mike & Mike’s Silverlight Demos (Beta 2): http://www.miketaulty.com/SLVideos.html
Tim Heuer’s Blog: http://timheuer.com/blog
Scott Guthrie’s Blog: http://weblogs.asp.net/Scottgu
Shawn Burke’s Blog: http://blogs.msdn.com/sburke
References
Questions?
Jeffrey M. RhodesPlatte Canyon Multimedia Software
Corporation
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