ASP.NET controls automatically keep their data
when page is sent to the server in response to
events (like a user clicking a button).
this persistence of data is called view state

It's a very common requirment that you may want to
insert ad codes or some other texts in a joomla article
or elsewhere.I am going to show how it can be done so
that if you want some text like "{replace it}" will be
replaced by your code -

I have given many interviews on c#,asp.net jobs and
went through the questions.here i am posting,It may
help you -

in asp.net application there may be different
server errors like file not found,server error,
etc.when those errors happens default ASP.NET error
page is shown which looks odd and users don't
understand what type of errors occured.to overcome
these problems it's a good idea to use own
error files.

It's a great idea to show application related tips
when users run your application.you may show tips
about how to use your application efficiently,details
of your application terms,etc.

when you build a software make sure that you built it by object oriented way
and you organized your files in folders as following way -