Hello,

Thank you for contacting us.

I’m not certain what date line are you mean. Could you please send me an isolated sample and a screen shot of the line, so I can provide you a better support.

I will be waiting for your answer.

Best Regards,
Marina Stoyanova,
Software Developer,
Infragistics, Inc.

Hello nbizub,

Thank you for posting in our community and for the attachments!

I believe this functionality is still not implemented out of the box for the Infragistics ASP.NET Gantt chart, and yet it could be achieved using a custom handling of the FillSceneGraph event. Here is a code snippet:

void chart_FillSceneGraph(object sender, Infragistics.UltraChart.Shared.Events.FillSceneGraphEventArgs e)
{
   IAdvanceAxis xAxis = (IAdvanceAxis)e.Grid["X"];
   IAdvanceAxis yAxis = (IAdvanceAxis)e.Grid["Y"];
   int x = Convert.ToInt32(xAxis.Map(DateTime.Now));
   int y1 = Convert.ToInt32(yAxis.MapMinimum);
   int y2 = Convert.ToInt32(yAxis.MapMaximum);

   Line l = new Line();
   l.p1 = new Point(x, y1);
   l.p2 = new Point(x, y2);
   l.PE.Fill = Color.Red;
   l.PE.StrokeWidth = 3;
   e.SceneGraph.Add(l);
}

Please let me know how this approach works for you!