TreeView control used to represent hierarchical data using expandable nodes. TreeView control is available in window forms and WPF as well.
This article will guide you “ How to populate and add new nodes to TreeView up-to N Levels from Database ”. You will be able to add new node at any level and expand this up-to N Levels and generate automatic code for any child.
1. Database Structure
Firstly, create database table with the given model. We will use only one table, as we have to expand it to N level. I have used SQL Server 2014. Any version of SQL server can be used.