SievePOS

Implement of : https://learn.microsoft.com/en-us/answers/questions/804455/how-to-do-simple-crud-operation-on-sqlite-database.html

Development Issues :

1. MVVM Pattern
2. Controls Binding
3. Command Binding
4. SQL Query
5. Sidebar Panel
6. MessagesBox oozy
7. Number Only Textbox
8. Error Binding, Submit Button Binding