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Add three more buttons: btnAdd, btnUpdate, and btnDelete. To update the database a reconnection is required.

Returning a Single Value Often the only data to be retrieved from a database is a single value for example, an account balance. This capability is not available in the. ParentRelations Returns the ParentRelations collection.

com-k2.ru com-k2.ru Tutorial - Working with disconnected data: The data in DataSet is disconnected from database. It has classes and methods to retrieve and manipulate data.

The DataSet object can also be used independently of a. For sample code that connects to a database, retrieves data from it, and then displays that data in a console window, see. For a higher-level abstraction that allows applications to work against a conceptual model instead of the underlying storage model, see the. These assemblies ADO.NET Programming not collect, store, or transport any user's private data. However, third-party applications might collect, store, or transport a user's private data using these assemblies. Describes the products Programmijg technologies included with the Entity Data Platform. Provides an overview of the design of the. Provides an overview of the DataSet design and components.