Hi Romance82m,
Iwas having same situation.
I did one thing,
I was binding DataGridView with DataSet , and textbox with datamember of that dataset.
So after that, if you edit that value in TextBox it will also reflect in DataSource also.
Actually , i was not using DataSet, but i was Using Collection and CurrencyManager for this whole thing.
So, Both(DataSet and Collection With CurrencyManager) methods are almost same.
So, your problem might solve by using this..
If i am wrong , let me know. If you found another solution then also let me know.
Thanks in Advance
Thank You
Best Regards
Utkarsh Gajjar