Hi Justin Ebenezer,
Thanks for using Syncfusion products.
Query: “How to provide checkbox or enable/disable button in every node”
From your query, we understand that you need to render the checkbox or enable/disable button inside the Treegrid to disable every node in it. From 2019 Volume 1 beta release we have provided support to render the checkbox column.
Kindly refer the below Demo and Ug documentation for your reference
For each checkbox selection, checkboxChange event will be triggered. So, in this event you can enable or disable the node. Please refer the below link for API reference
Using the “checkboxChange” event, you can enable/disable checkbox of child node while enabling/disabling parent’s checkbox.
So kindly share more details about your requirement (i.e) disable means do you want prevent the selected row from editing or change the opacity or remove from visibility etc. based on your requirement we will provide the solution.