C# DataAdapater Tutorial
The DataAdapter serves as a crucial component of the ADO.NET Data Provider, responsible for retrieving data from a specified data source and populating tables within a DataSet. Additionally, the DataAdapter facilitates the synchronization of changes made to the DataSet back to the original data source. The Fill method employed by the DataAdapter utilizes the DataReader object implicitly. This method retrieves both the column names and types required to construct the tables within the DataSet, as well as the data necessary to populate the rows within these tables.
On the other hand, a DataSet represents a collection of data that has been retrieved from a data source. It is capable of both storing and persisting data back to the data source. To effectively utilize the DataSet, it can be employed in conjunction with the DataAdapter class, combining their functionalities to seamlessly manage and manipulate data between the application and the data source.
The DataAdapter in the .NET Framework leverages the Connection object provided by the .NET Framework data provider to establish a connection with the designated data source. It utilizes Command objects to retrieve data from and apply modifications to the data source. Every .NET Framework data provider encompasses its own DataAdapter object. For example, the .NET Framework Data Provider for OLEDB features the OleDbDataAdapter object, the .NET Framework Data Provider for SQL Server includes the SqlDataAdapter object, and the .NET Framework Data Provider for ODBC incorporates the OdbcDataAdapter object. These DataAdapter objects are specifically designed to facilitate seamless interaction with their respective data sources, ensuring efficient data retrieval and modification processes within the .NET Framework environment.
Functionally DataAdapter is the complex Object when compare to other Objects in the Data Provider . From the following links you can learn more about DataAdapter in combination with dataset.