C＃问题：如何将DataGridView中所做的更改保存回所使用的DataTable？

I get a DataTable from a DataSet and then bind that DataTable to a DataGridView. Once the user edits the information on the DataGridView how do I take those changes and put them back into a DataTable that was used that I can then put back into my DataSet?I get a DataTable from a DataSet and then bind