it's needed to show nice tips through out the web page.basically
you will show tips in a basic popup on a html element click.it
will also show nice arrow pointing to where the click arised -

we know different file types like html,jpeg,gif,pdf,
doc,etc handled by different browsers like IE,
firefox,opera,etc.the situation can come when the
browser can't handle the file type,it will ask
to save or open that file.

System.Net namespace is for dealing with networking.It
is concerned with operations like downloading, uploading
files,making requests by http protocols.

in php there is a command which is used
to redirect to a page from a page.the following
codes shows hot to achieve this.

you will need to access html elements from asp.net
code behind file.i show you how to access widely used
html textarea element from code behind file -

when you process credit card payment the two
most sensitive inputs are taken from customer
are card number and card security code.you
will want to verify that the data entered
is valid before processing credit card payment.