https://www.dotnetzone.gr:443/cs/blogs/dotnetrules/archive/2010/04/05/hidden-div-elements-in-asp-net-4-0.aspxThis is a very short post for a new feature that ships with VS 2010 and ASP.Net 4.0. It is about the hidden fields in ASP.Net 4.0. We do know that ASP.Net is using hidden fields as a state control mechanism. It is used to preserve viewstate and controlelCommunityServer 2.1 SP3 (Build: 20423.1)