AJAX Date Picker is a free ASP.NET 2.0 calendar control that utilizes AJAX techniques to get data from the server without an entire page postback. You can specify the clickable dates on a given month as well as other days like holidays, etc. A great application for this control is for those sites that uses some reservation system to select valid dates. For example a travel site can use this control to render only valid dates. This controls limits the user on what dates to click. As a result you have a hybrid client/server validation.
