sometimes it's needed to check whether there are multiple same
modules in the current page or not to keep one version of the
module or some other checks.

In wordpress there are some definite ways to add scripts and styles
in your custom plugin.If you don't follow these rules you might
encounter numerous problems specially related with jquery.

we all know well that the DataGrid is used for database work.we
can use DataGrid contorl to show data from database tables.
but it's that the new version of the DataGrid control in the c#
language and Vb.net is able to show any other objects
of classes which implements IList interface.

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.