if you have a asp.net web page which is derived
from a master page then you may have trouble
using a form inside your page.It happens because
of your master page using a form.It's a little tricky
to be able to use another form which you need to use.
you have to use a javascript line for that.

normally we define connectionstrings under
<connectionStrings> tag in the web.config
file.membership providers use that
connectionstring.what if we needed to use
the connectionstring in asp.net pages?.

there are many starter kits for visual web
developer to learn asp.net 2 and do the
common scenarios of web development.

we know how to use asp.net membership provider.
most of the time we create membership tables
manualy.But those tables can be created
automatically by adding a line in the membership
provider configuration in web.config file.

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

for creating own exception class,you have to derive your class
from System.Exception class.also you have to implement all
constructors which base class implements.to create own
exception class follow the requirements/recommendations
below-