Not refreshing in WPF with DataGrid

Answer 1

Have you tried resetting the DataContext of your DataGrid to your DataTable after it has been updated?

Update

Your DataTable should be the DataContext of your DataGrid. It looks like you are binding your DataGrid to your DataTable.

myGrid.DataContext = myTable;

It looks like you are currently updating straight to your DataBase, instead of the DataTable. You need to update your DataTable, and then commit to your DataBase. Once this is done, reset your DataContext your updated Table. It should refresh your DataGrid to the updated data.