C dataadapter update not updating database


13-Feb-2020 09:40

For more information see Generating Commands with Command Builders.The Update method retrieves rows from the table listed in the first mapping before performing an update.Hi Why this code does not updated the DB, just the Data Set: Data Set ds = new Data Set(); Ole Db Data Adapter adapter = new Ole Db Data Adapter("Select * from Employees", @"Provider=Microsoft. Update(ds, "Employees"); foreach(Data Row row in ds. All added and modified rows become "Unchanged", and, when you call Update (..), the data adapter doesn't find any modified rows to update. Hope this helps, Eliyahu "Shahar" Hi Why this code does not updated the DB, just the Data Set: Data Set ds = new Data Set(); Ole Db Data Adapter adapter = new Ole Db Data Adapter("Select * from Employees", @"Provider=Microsoft. However, you can create a Sql Command Builder or Ole Db Command Builder object to automatically generate SQL statements for single-table updates if you set the property of a . Then, any additional SQL statements that you do not set are generated by the Command Builder.

An application can call the Get Changes method in situations where you must control the sequence of statement types (for example, INSERT before UPDATE). NET Framework data provider to connect to a data source and Command objects to retrieve data from and resolve changes to the data source.



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