Hi Bernard,
We have analyzed your query. We suspect that, you want to set the icon for each node. In our TreeView component, we have provided the “spriteCssClass” property, so you can use this property to set the icon for each node. Please check the below playground sample.
Already we have discussed this kind of details in below forum, please check it.
Please let us know, if the provided information’s are helpful to achieve your requirement or not.
Regards,
Ashokkumar B.