ADO DOT NET Framework

C Charp (C#) ADO.NET | Data Set | Data View | Data Table Disconnected Environment: In ADO.NET , a disconnected environment is one in which an application is not directly connected to a data source. In this environment, data stored in DataSet and manipulated are performed. DataSet : A DataSet is a memory based relational representation of data. It is a part of disconnected environment. A DataSet is a disconnected, cached set of records that are retrieved from a database. The data set acts like a virtual database containing tables, rows and columns. There are two types of data sets: Typed DataSet and Untyped DataSet . Typed Data set: A typed DataSet is derived from DataSet classes and has associated XML schemas which is created at the time of creation of the database. The XML schemas contains information about the DataSet structure such as tables, columns and rows. Data is transferred from a database into a Data...

Data Adapter and Data Set in ADO.NET Data Adapter : DataAdapter is a part of the connected environment. A DataAdapter is integral to the working of ADO.NET because of data is transferred to and from a database through a DataAdapter . Read  :  How To Create Connection with Database in SQL Read  :  What is ADO.NET? Read   :   D ata Table and Data View in ADO.NET A DataAdapter retrieves data from a database and store into a DataSet . When you make changes to DataSet the changes in the database are actually done by the DataAdapter . The DataAdapter first compares the data in the DataSet with that in the database and then updates the database. DataAdapter that can be configured to connect to a database in visual studio NET. A DataAdapter uses the connection objects SqlConnection , OleDbConnection , OdbcConnection , OracleConnection to communicate with the database. A DataAdapter communicates with a database ...

ADO.NET Framework | Data Binding | Data Table | Data View | Connected and Disconnected Architecture Data Binding Data binding is the ability to bind some elements of a Data Source with the controls of an application. Read : How To Create Connection with Database in SQL Read  :  What is ADO.NET? On the basis of the number of bound, there are two types of binding: Simple Data Binding: Simple Data Binding is the process of binding a control to a single value in DataSet . The DataSet values can be bound to the control by using the properties of the control. Complex Data Binding Complex Data Binding is the process of binding a component (Data Grid View, List Box, and Combo Box) to display multiple values from DataSet .  Complex data binding is the ability to bind a control to more than one record to a data source. The data source property of the control is used to bind the control to a database. Navigation Between Records After binding to...

How To Create Connection With Database in SQL Server Creating and Managing Connections To connect to a database for retrieving the data and updating the database, performs the following tasks. 1.     Create a connection object 2.     Create a command object 3.     Open the Connection object, 4.     Execute SQL statements in command object 5.     Close the connection object Creating a CONNECTION object: The connection component of a data providers is used to establish a connection with a Data Source. Read : What is ADO.NET?   To create a connection between User Interface and Data Source, Create a connection object. Read:  Connected and Disconnected Architecture of ADO.NET Use SqlConnection class to open the connection of Microsoft SQL Server Database . After creating the connection object, Use ConnectionString property provides the ...