Hi,
Thank you for choosing Syncfusion. Essential Chart and several other custom controls are not displayed properly within ActiveReports. However, ActiveReports provides a work around to this problem by using a Picture control and setting the Image property of the Picture control with a image of the Custom control.
Essential Chart supports drawing to a image and can be easily used in ActiveReports using this work around. Please see the sample linked to below for an example:
http://www.syncfusion.com/support/user/Uploads/EssentialChartActiveReports_2860.zip
Regards,
Davis