How do you do this?
Hello Jeff, and welcome to the community!
We have many online samples regarding IgniteUI and the igGrid at IgniteUI.comI believe you will find the following one is an extended sample of what you are looking for: http://igniteui.com/grid/rest-editing
If you are interested in more detailed description, you could refer to the official documentation, where we have several resources regarding this.igGrid_REST_UpdatingigHierarchicalGrid_Binding_to_REST_ServicesigHierarchicalGrid_Binding_to_WebAPIigDataSource_Binding_to_REST_Services
Please let me know how these resources work for you!
How to achieve this by just using jQuery (without MVC helper) ?