Hello Thang,
Thank you for writing.
RadGanttView does not support multi-select items. However, it is a reasonable request. I have logged it in our
Feedback Portal. You can track its progress, subscribe for status changes and add your vote/comment to it on the following link -
Feedback Item.
I have also updated your
Telerik points.
Currently, the possible solution that I can suggest is to detect the
GanttViewTaskElement on
MouseDown and change its
BackColor in order to indicate several items as selected.
I hope this information helps. Should you have further questions, I would be glad to help.
Regards,
Desislava
Telerik
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