Migrating VDL 2 Apps to VDL 4.x

Covered Topics

• Change the Version of your VDL File
  You need to change the root tag of your VDL file.
• Namespacing Tags and Attributes
  In VDL 3 the decision was made to namespace all non HTML5 tags.
• AutoText Changes
  Where VDL 2 had the autotext and text tags, VDL 4,7 has the single attribute vdl-text.
• Converting Custom Runner Code to Script Blocks
  In VDL 2 the custom runner file allowed the view developer to layer on extra scripted functionality.
• Table Modifiers
  One of the main uses for a custom runner was to add functionality to AutoTables.
• Removing Custom Runner References from the Companion File
  Remove any references to custom runners in the companion file.
• Removing Handlebars References
  In VDL 2 dynamic access to some entities, scenario properties and loop variables was achieved with the so-called Handlebars syntax.