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ADO.NET Interview Questions

ADO.NET Data Row Version values

ADO.NET Data Row Version values

DataRowVersion value  Description 
Current The current values for the row. This row version does not exist for rows with a RowState of Deleted.
Default The default row version for a particular row. The default row version for an Added, Modified, or Unchanged row is Current. The default row version for a Deleted row is Original. The default row version for a Detached row is Proposed.
Original The original values for the row. This row version does not exist for rows with a RowState of Added.
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.
ADO.NET Interview Questions

ADO.NET Row State Versus Row Versions

Row state indicates the status of a row whereas  Row versions maintain the values stored in a row as it is modified, including current, original, and default values.
Example :
Once you have made a modification to a column in a row, row will have a row state of Modified, and two row versions: Current, which contains the current row values, and Original, which contains the row values before the column was modified.

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