hi every one
i am very beginner of ASP.Net so during the last project i encounter
problem that i need to make dynamic list ?!
i.e : i am design personal information form and the form contain fields for date(day,month,year) if the user for example choose "February" the day list will be changed to allow only 29 day and so on .
any solution please
Thanks :)

You could use the .NET calendar component which has all the correct days of every month and year. You're probably going to want to concatenate that date anyway when you insert it into the database.

thanks you rstelma
but the problem here is that this date will be the birth date of the user so it's not easy to move through the year specially if the year in the calender is too far from his brith year .
please if there any other solution or if there any way for allow the user to enter his year and reflect that of calender please answer me
and thanks you very match

I see. I have done this in the past using javascript. I can't put my hands on that code right now but I'm sure I found it by searching the Internet. If you're interested I can look up that code later on and post it here.