Answer Posted / swapna
There are four types of Rowversions.
Current:
The current values for the row. This row version does not
exist for rows with a RowState of Deleted.
Default :
The row the default version for the current DataRowState.
For a DataRowState value of Added, Modified or Current, the
default version is Current. For a DataRowState of Deleted,
the version is Original. For a DataRowState value of
Detached, the version is Proposed.
Original:
The row contains its original values.
Proposed:
The proposed values for the row. This row version exists
during an edit operation on a row, or for a row that is not
part of a DataRowCollection.
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