What is the use of IDataReader with example

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I am new to c# .I found a new interface IDataReader while reading in a book.I didnt understood use of that interface.Can any one explain about this interface.Thanks In Advance.

Posted 25-Jul-12 23:01pm

Prashant Bangaluru

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OriginalGriff · Answer 1 · 2012-07-25T23:06:00

Solution 1

You wouldn't normally use it - it is the interface which is implemented by the various DataReaders - SqlDataReader, MySqlDataReader, and so on which access database data.

If you are new to C#, then I would just ignore it at present - I have never used it, and I'm not a beginner!

Posted 25-Jul-12 23:06pm

OriginalGriff

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Prashant Bangaluru 26-Jul-12 5:18am

Thanks I got little info on that.But I have seen in a project.So I showed interest in it.If you have any example please post the same.

Abhinav S · Answer 2 · 2012-07-25T23:08:00

As per msdn "Provides a means of reading one or more forward-only streams of result sets obtained by executing a command at a data source, and is implemented by .NET Framework data providers that access relational databases."

This interface provides some common properties / methods that are then used in various database specific implementations of this interface.

For e.g. the SQLDataReader[^] provides an implementation specific to SQL Server.

A few data readers are listed below. You can refer MSDN for details on any of these -

System.Data.DataTableReader
System.Data.EntityClient.EntityDataReader
System.Data.Odbc.OdbcDataReader
System.Data.OleDb.OleDbDataReader
System.Data.OracleClient.OracleDataReader
System.Data.SqlClient.SqlDataReader