Here is the simple coding on how to code do calendar programming using php..

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 -

you may want to get the asp.net control's or html element's
id when clicked or other events fired for that element.
It can be done in many ways using jquery or simple javascript.

If you want to run your software with same width and
height as your monitor's width and height then
implement the following technique in your application-

It's a very common requirement to show hint in textbox when empty
and when textbox gets focus hint goes away.now a days many websites
implemented showing hint.there are many ways to do that by jquery.

GridView is the most common data representation
contol in asp.net.It's needed to show users the
items details when the item is selected.DetailsView
control can be used precisely to show the Gridview items
details.