ActiveX Data Object.NET

ActiveX Data Object.NET

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ActiveX Data Objects .NET (ADO.NET) is a data access technology provided by Microsoft as part of the .NET framework. It is designed to facilitate database connectivity and manipulation in .NET applications. ADO.NET provides a set of classes and components that allow developers to interact with various data sources, including databases, XML files, and web services.

Here are some key features and components of ADO.NET:

  1. Data Providers: ADO.NET includes various data providers that act as bridges between the application and different data sources. The most commonly used data provider is the SQL Server provider, but there are also providers for Oracle, MySQL, and other databases.
  2. Connection Management: ADO.NET provides classes for establishing connections to data sources, managing connection pooling, and handling connection events. Developers can create and manage connections to databases using the Connection class.
  3. Data Access: ADO.NET provides classes like DataReader and DataSet for retrieving and manipulating data. The DataReader class allows forward-only, read-only access to data, making it suitable for scenarios where data is read sequentially. The DataSet class represents an in-memory cache of data and provides more flexibility in terms of data manipulation.
  4. Data Binding: ADO.NET supports data binding, which allows developers to bind data from a data source directly to UI controls. This simplifies the process of displaying and updating data in user interfaces.
  5. XML Integration: ADO.NET includes classes for working with XML data, such as the XmlReader and XmlWriter classes. These classes enable reading and writing XML data from various sources and integrating it with relational data.
  6. Disconnected Architecture: ADO.NET follows a disconnected architecture, meaning that data is retrieved from a data source, manipulated in memory, and then updated back to the data source as needed. This allows for better scalability and performance in distributed environments.

ADO.NET provides a powerful and flexible framework for accessing and managing data in .NET applications. It is widely used in building data-driven applications, web services, and other software solutions that require database connectivity and data manipulation capabilities.

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