Application file (Real world example)
- by aalhamad
Looking for guidelines to create application file. For example I have an application that store user input into a file (Textbox, DataGrid, ListBox etc). I'm looking for WPF-C# implementation. 
I would like to have the following:
If user edit a any form(Textbox, etc) an asterisk is displayed to the window title.
When window is closed and asterisk is still there, a promote "Would you like to save changes" appears. If then saved the asterisk disappear. 
What do real applications use to create their application file? (Note: I'm not looking for database saving or SQL) 
I'm just looking for hints and guidelines. Thank you.