Server.Transfer is used when redirecting the webpage with in the same applicationwhereasResponse.Redirect is applicabletowards the redirection of webpage between 2 applications
Response.Redirect will instruct browser to call a particular webpage.This will increase one request and one response between the client and server.
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How to create a DB connection at one place/page so that we can use that connection for all pages/forms/windows.what r the steps ned to be performed. if question not clear,let me know.