I am trying to create a room reservation system, however I am having some strains.
here is what I am trying to do:
a customer should be able to view available dates for a particular room.I mean dates on which this room is free, so that he does not book a room that has already been taken on the time period he specifies he will be staying in the hotel.
please can anyone give me some help on this?

That is a very broad question. You will have to create a database that holds rooms and dates available. then display this to the user some way, via a grid, repeater etc. You need to get some ideas together and ask more specific questions

Am a new asp c# programmer, I am developing an online booking system, I am trying to create a time sheet control such as would map the rooms to their available dates...I ddint have a hint of how this is done in c#, so what I did is my app just checks the booked rooms and displays the rooms that havent been booked on the customers specified arrival and departure dates. However I prefer the time sheet effect, any help in c#

There are two main types of display available for data. There are a number of out-of-the-box data controls like GridViews, DetailsViews, ListViews, Repeaters, etc. I'm not quite sure what you mean by "timesheet" but GridViews are very effective at building HTML tables and providing the ability to display and edit data from a database.

If none of those solutions give you what you want, you can also create completely custom solutions, but you'll need two things. One, you'll need to create a static (ie pure HTML) version of the webpage as you want it to display. C# is a programming language that let's you automate simple and sophisticated tasks, but it will only help you to generate the HTML. If you don't know what HTML you want to output, C# and any other language are no help. Two, you'll need to be a decent programmer, how long have you been programming? Are you familiar with how to design classes or write to interfaces?

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A Growing History of our Planet, by our Planet, for our Planet.

Some one refered to it as timesheet control but I guess it was a custom control. it takes the form of a grid, each block representing a calender date, the blocks-dates, on which the desired room is available appear white, while the blocks representing the unavailable dates for the desired room appear black .
Well I took c and java as my first programming languages at school-2007, I started php after that on my own-2008, ddnt like it cuz its limited to just web programming n ddnt appreciated the sytax, so I tried vb,...Found c# earlier this year n I know I had arrived home.However been writing console apps just to get familiar with the raw programming.n been browsing steve walthers asp.net 3.5 unleahed...apart from that, the application am working on write now -booking system is my first full commercial application.Yes am familiar with object oriented programming except for deeper concepts like real reasons of how an interface can help me accomplish what just what U said...but thanks for the help n strong words...Am only a starter n am enjoying the challenges already...will appreciate any help too....

You're not in bad shape. You have some good programming experience under your belt, have worked in multiple languages. Yes you're a beginner, but you might be able to pull this off.

I have generally steered clear of calendar style controls and this sounds like a lot of the functionality would be similar. I would suggest that you may be able to get something like this to work if you use link fields in a GridView. Each link would take you to a confirmation page where you'd have a simple detailsView that actually makes the reservation and interacts with your database. That way the difficult part of this project (creating the UI) would have relatively simple database work (display only) and the other dynamic page would take the parameters from the query string and do all the heavy DAL lifting.

__________________
-------------------------

Whatever you can do or dream you can, begin it. Boldness has genius, power and magic in it. Begin it now.
-Johann von Goethe

When Two Hearts Race... Both Win.
-Dove Chocolate Wrapper

Chroniclemaster1, Founder of www.EarthChronicle.com
A Growing History of our Planet, by our Planet, for our Planet.

Thanks for the great idea, ill begin trying that now...