BoldSignEasily embed eSignatures in your .NET applications. Free sandbox with native SDK available.
If you want to include any other customization please make use of the following sample,
<Installed Location> \AppData\Local\Syncfusion\EssentialStudio\<installed Version>\Windows\Grid.Grouping.Windows\Samples\Relation And Hierarchy\Self Referential Grid Demo
Please let us know if you have any concern.