Occurs during System.Data.Common.DbDataAdapter.Update(System.Data.DataSet) before a command is executed against the data source. The attempt to update is made, so the event fires.
When using System.Data.Common.DbDataAdapter.Update(System.Data.DataSet), there are two events that occur per data row updated. The order of execution is as follows:
[The 'ordered' type of list has not been implemented in the ECMA stylesheet.]