if u do a project in.net you have many webforms.each form
should connect with database.so u have to write
connectionstrings in each form.u can avoid these things.u
can declare connection strings in global wise.then it will
inherit in each form
Application Setting is mostly use when we want to perform
more then one work just like this setting with the reporting
tools , make new connection for the user control etc.
but if we want to make only connection with the database and
we don't any other work so we use the connection string .
appsetting is working with the group type.