in many circumstances, we need to schedule in relative time, say 1d00:23:30.2500 rather than 2009-04-09T12:23:30.2500, is this surpported in ig gannt chart ?
you can just reformat the dates like this:
ItemFormatString = "1\dhh:mm:ss.tttt"
or if that's an oversimplified solution, you can implement the IRenderLabel interface and return your label strings in code.
Thanks, David