[DX_WPF] DevExpress Create a Custom Service
https://docs.devexpress.com/WPF/16920/mvvm-framework/services/create-a-custom-service
Create a Custom Service | WPF Controls | DevExpress Documentation
This topic describes how to create a custom service if predefined services do not suit your requirements. Note If you need to implement the logic that should access a UI element in the View Model code, you can use the UIObjectService instead. Follow the st
docs.devexpress.com
DevExpress의 ViewModelBase를 사용하지 않고 쓰는 법 (현재 구현 실패)
https://docs.devexpress.com/WPF/17450/mvvm-framework/services/services-in-custom-viewmodels
Services in Custom ViewModels | WPF Controls | DevExpress Documentation
This documentation topic describes how you can implement support of the Service mechanism in a custom View Model (not derived from the ViewModelBase class and not a POCO ViewModel). If your View Model is not a POCO View Model and it is not derived from the
docs.devexpress.com