what is datareader and dataadapter and its connections?with example

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what is the datareader and datadapter with example and its connections architecture
Please explain me with example..

thanks in advance.

Posted 11-Nov-11 17:44pm

sathiyak

Updated 11-Nov-11 18:46pm

koolprasad2003

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-11-11T18:38:00

These questions look ripped out of the context of the concepts in question, so answering by giving some "definition" or explanation without other related concepts cannot help anyone. You need to get the whole picture.

See, for example, this CodeProject article with really simple source code samples: Using ADO.NET for beginners[^].

Learn the concepts in more detail, you will need it. Start here:
http://msdn.microsoft.com/en-us/library/h43ks021%28v=VS.100%29.aspx[^],
http://msdn.microsoft.com/en-us/library/e80y5yhx.aspx[^],
http://msdn.microsoft.com/en-us/library/aa302325.aspx[^].

—SA

moneymakermaster · Answer 2 · 2011-11-11T18:40:00

Solution 2

http://www.csharp-station.com/Tutorials/AdoDotNet/Lesson04.aspx[^]

http://www.csharp-station.com/Tutorial/AdoDotNet/Lesson05[^]

Posted 11-Nov-11 18:40pm

moneymakermaster

koolprasad2003 · Answer 3 · 2011-11-11T18:44:00

Datareader and DataAdapter are the objects of ADO.NET

Datareader:
it is connected architecture. You need to keep connection open while fetching records from database. It will fetch one record at a time. It is forward and readonly
here[^] is example of datareader.

Dataadapter:
it is disconnected architecture. You not need to keep connection open while fetching records from database.
example[^]

what is datareader and dataadapter and its connections?with example

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