Hello Robin,
There is no way to increase the height of certain rows in TimelineViewDefinition manually, but I would suggest to set
StretchGroupHeaders property of the ViewDefinition to
True:
In this way the GroupHeaders will be stretched to the whole height of the control, and if there are more appointments for a specific Resource - the corresponding row will be expanded while the other rows will be narrowed.
Hope this helps.
Regards,
Yana
the Telerik team