Hi There,
Hope you find this message in good health.
I have very strong hands on C#,WPF,WinForm,ASP.NET, SQL, MS Access. I have done lots of projects using the same.
I have done masters in computer application and I have 10+ years of software development experience
I can develop this tree view bounding to Observable collection per your need.
Hope to hear from you soon.
Thanks!
Best Regards