to convert bitmap image file to gif file you
have to create bitmap object first.

following is the list of online websites which
contain online books,a lot of study material-

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

the following javascript codes will help you find
out the browser details by some javascript functions

A c# class can have both static and non static members.
static members is declared with the keyword static.

the base keyword is used to access base class
members inside derived class.

Sql server knows many data types.it's worth our
while to know most common types -

The great control in the asp.net ajax is the update
panel control.it can be added to almost every
asp.net page almost magically.this control when
used with a ScriptManager permits a programmer to
use partial rendering(a technique by which many
sections of page updated partially without reloading
the entire page).

this post shows how to populate dropdown list from
dataset.it's done by the following generic method-