Hi Dimitar,
Sorry for the delay in responding.
I have attached a sample that shows how to remove a baritem from the child form and add a new bar item dynamically.
Please have a look at the attached sample and let me know if this meets your requirement.
Thanks for your interest in Syncfusion products.
http://websamples.syncfusion.com/samples/tools.Windows/F58772/main.htmBest regards,
Golda