Is it true that the PrimaryKey and ForeignKey in an igTreeGrid with flat data both have to be numeric? The tree grid appears not to render if the data type of the columns are string.
Thank you for contacting Infragistics!
Concerning using strings for Primary/Foreign keys you will want set the foreignKeyRootValue:
This will tell the igTreeGrid which rows are the parents so it can render those and the put the children under them. By default it is set to -1, so you will have to set it to whatever key you have that will represent your parent level.
Thanks Mike, that works a treat!