// add bar chart to container and assign name 
SubItemChart chartBar = new SubItemChart(LlChartType.Bar3DStackedRelative, container.SubItems);  
chartBar.Name = "3DStackedRelative bar chart";  
  
//pass source table path  
chartBar.SourceTablePath = "Employees.Orders(Employees2Orders).Order_Details(Orders2Order Details)";  
  
//access chart engine 
PropertyChartEngineBar3DStackedRelative engineBar = (PropertyChartEngineBar3DStackedRelative)chartBar.Definition.ChartEngine;