Occurs during Update before a command is executed against the data source.
When using Update, there are two events that occur per data row updated.
You can use an output parameter of a stored procedure that performs the insert action, or you can use the Sql Data Adapter object's Row Updated method.
The simplest way to get the value of an IDENTITY column is to set up the identity value as an output parameter of a stored procedure and use the Sql Data Adapter to map that value back to the column in the Data Set.
The Command Builder opens the Connection associated with the Data Adapter Object and makes a round trip to the server each and every time and it's asked to construct the action queries.
I created a Windows application and added a button control to the form. In this event, a DBConcurrency Exception will be thrown. For a list of these values, see the Sql Data Adapter constructor. Update(Data Set), a parameter should be added to the Insert Command, Update Command, or Delete Command. Source Column property of the Db Parameter object should be set to the name of the column. This causes the rows affected count returned to be zero, which the Data Adapter interprets as a concurrency conflict. When an instance of Sql Data Adapter is created, the read/write properties are set to initial values. For every column that you propagate to the data source on Db Data Adapter. However, primary key information is not included in the implicitly created schema unless the Data Adapter. When the Sql Data Adapter fills a Data Set, it creates the necessary tables and columns for the returned data if they do not already exist.