I need delete some links but i don't know how i can do it.

If i press the button of mouse, there are the delete option. But this, remove the child of node.

 

Hello, Marc,

Thank you for writing.  

Currently, RadGanttView doesn't support such kind of functionality. However, we already have a similar issue logged in our feedback portal. You can track its progress, subscribe for status changes and add your comments on the following link - feedback item.

Currently, you can delete the link programmatically from the DataSource.

I hope this information helps. Should you have further questions I would be glad to help.

Regards,
Dess
Progress Telerik