Download - Krish data controls
M.G.KRISHNA KUMAR
PRESENTED BY
DATA CONTROLSData controls in
ASP.NET
Array HashTable
DataReader
DataSet
DATA CONTROLSBind to many Data Sources
Collections
ADO.NET
XML : Extensible Markup Language is a markup language that defines a set of rules for encoding documents in a format that is both human – readable and machine-readable. It is defined in the XML 1.0 Specification produced by the W3C. (World Wide Web Consortium)
DATA CONTROLSADO.NET
Connection
CommandData ReaderDataSetData AdapterData View
Data reader : The ADO.NET DataReader to retrieve a read-only, forward-only stream of data from a database. Results are returned as the query executes, and are stored in the network buffer on the client until you request them using the Read method of the DataReader.
Data Set : Datasets store a copy of data from the database tables. However, Datasets can not directly retrieve data from Databases. DataAdapters are used to link Databases with DataSets.
If we see diagrammatically.
Databases Data Providers DataAdapters DataSets
Data Adapter : DataAdapter is a part of the ADO.NET Data Provider. DataAdapter provides the communication between the Dataset and the Datasource. We can use the DataAdapter in combination with the DataSet Object. That is these two objects combine to enable both data access and data manipulation capabilities.
Data view : A Data View enables you to create different views of the data stored in a Data Table, a capability that is often used in data-binding applications. Using a DataView, you can expose the data in a table with different sort orders, and you can filter the data by row state or based on a filter expression.
AuthorsConnection
Database
DataAdapter
DataSet
Select … from Authors
Authors
DATA CONTROLSADO.NET
PublishersConnection
Database
DataAdapter
DataSet
Select … from Publishers
Authors
Publishers
DATA CONTROLSADO.NET
DataSet
Authors
Publishers
Data View
DataGrid
DataList
Repeater
DATA CONTROLSADO.NET
Displays data as a table Control over
Alternate item Header Footer Colors, font, borders, etc. Paging
Updateable Item as row
DATA CONTROLSData Grid
List formatNo default outputMore controlMore complexityItem as rowNot updateable
DATA CONTROLSRepeater
Directional renderingGood for columnsItem as cellAlternate itemUpdateable
DATA CONTROLSData list
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