Updating dataadapter access
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Because the applications holds on to connections only when necessary, the application becomes more scalable.When Update is called, the Data Adapter will attempt to execute each query (UPDATE, INSERT, DELETE) on every row of the Data Set that has been updated, inserted, and deleted.For example, if you call Delete on a row on the Data Set, then when Update is called on the Data Adapter, the Delete Command of the Data Adapter will be called using the particular row in the Data Set.The Sql Data Adapter opens a connection only when required and closes it as soon as it has performed its task.For example, the Sql Data Adapter performs the following tasks when filling a Data Set with data: In between the Fill and Update operations, data source connections are closed and you are free to read and write data with the Data Set as you need.