I was wondering if it is possible to customize the StartDate/EndDate DateTime columns in SharePoint to behave similarly to ASP.Net Calendar controls. That is to say, I would like the ability to filter out dates which should not be eligible for selection.
For example, for certain lists, I would like to only allow the user the ability to select dates which are neither weekends, nor holidays.
Currently, the DateTime column only allows a limited set of criteria for setting date values which is not sufficient for my needs.
Please let me know how to accomplish this (preferably in SharePoint 2007, but a SharePoint 2010 solution is also welcome).
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