in windows invironment,the file system is splited into directories
and files.files holds the actual data,but directories are
storage for logical listing of files in the system.to deal with
files and folders(directories),CLR uses System.IO namespace.
the classes used are File,FileInfo,DirectoryInfo,Directory.

you may have seen input textbox becomes wider
dynamically in some websites when mouse cursor is
placed on it(in focus) to take some user input.It's
attractive to see and in this way it makes spaces
for larger input.

I wanted paging for showing datalist items in pages.for
that i used pageddatasource.it's necessary very much.
following codes show how to add paging for datalist items -

It's a very common to get joomla module's setting parameters in
code to process the module.It's easy but sometimes things
become complicated if you don't find the right way to do
that.

you may read many article in web about how to make a page
not to be cached using meta tags like that in the head
section -