In my previous replies, I have stated that the EditEnded event defined on the Cell class and NOT the EditCommitted event defined on the DataGridCollectionView class should be used if you want to know the value of the cell that was edited.
That said, if you insist on using the EditCommitted event, you will need to know the name of the cell that was being edited and then access the corresponding cell through the data item (System.Data.DataRow) you are receiving in the event args (of the EditCommitted event). For example:
( ( DataRow )e.Item )["NameOfTheCell"];
You can refer to the Edit Routed Events (http://doc.xceedsoft.com/products/XceedWpfDataGrid/Handling_Edit_Events.html) topic in the documentation for examples on how to use the EditEnded event OR you can refer to the DataGridCollectionView Edit Events topic (http://doc.xceedsoft.com/products/XceedWpfDataGrid/Editing_Data_CollectionView.html) for information on the EditCommitted event.
Technical Writer - Xceed Software
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