Apologies if this is apparent, but if my tasks already contain the parent/child identifiers, what is the best way to populate the dependency datasource with that information. Do I need to make a call back to the server?

Hello Marc,

It seems that you are confusing the parent/child task relationship with the dependencies between the tasks. The dataSources for the tasks and the dependencies are different so you should make separate requests for populating each of them. Here are some resources related to the Gantt:

• Gantt widget documentation - the HowTo articles could be helpful;
• Gantt API documentation;
• API documentation for GanttDataSource, GanttDependency, GanttDependencyDataSource, GanttTask;
• Gantt online demos;

Regards,
Peter Milchev
Telerik by Progress