Wpf 排序或数据网格上的 crud 导致重置复选框

Question

I added column that has checkbox and when checkbox checked i get average of some numbers that selected.

The problem is when sorting data or do something to database cause all checkbox check status to false. How to fix it?

The only way i know is store that checkbox as boolean in database and everytime i run the program set all boolean to false. But that is not good way. Because in large data cause slowly down the performance of program.

(i don't know my grammer is right, so hope you understand what my problem is)

Answer 1

Make sure you are using a ObservableCollection and once necessary action complete, SaveChages to the database. Then do your refresh or reload whatever. It seems, you are reloading the data, which is not necessary as long as the context is alive. Just make sure you are saving the new state of the collection to you DB (use that same context you used to load the data) I hope it helps