send me code sample for 3-tier architectrue in c#.net using sql server for insert,delete,update,find,select commands

2.what is meant for pooling ?

PLEASE ...

Have a look at

http://msdn.microsoft.com/practices/

You should find most of your are looking for ..

Other interesting areas to look at are going to be generating data layer dynamically...

http://www.codesmithtools.com/

Pooling connections.. is that what you are asking ?

PLEASE ...

Have a look at

http://msdn.microsoft.com/practices/

You should find most of your are looking for ..

Other interesting areas to look at are going to be generating data layer dynamically...

http://www.codesmithtools.com/

Pooling connections.. is that what you are asking ?

tier nowadays refer to physical separations and a good example is Rocky Lhotka's CSLA framework.

If you are running Visual Studio 2005 then just go to the Start Page and look at the articles. The first four items are building a 3 tier application.

send me code sample for 3-tier architectrue in c#.net using sql server for insert,delete,update,find,select commands

I think this is what you are looking for.

A Complete 3-tier tutorials with source code (copy-paste) including insert, delete, update, load functionalityin 3-tier architecture is available at http://dotnetfunda.com/articles/article71.aspx

I am sure this will help you.