This control enables a developer to store a non-displayed value in the rendered HTML of the page. The HiddenField control is used to store a value that needs to be persisted across multiple postbacks to the server.
It is rendered as an <input type= "hidden"/> element. This control was introduced by ASP.NET 2.0.
Normally view state, session state, and cookies are used to maintain the state of a Web Forms page. However, if these methods are disabled or are not available, you can use the HiddenField control to store state values. Note that because the value of a HiddenField is rendered to the client browser, it is not suitable for storing security-sensitive values. To specify the value for HiddenField a control, use the Value property. You can provide a routine that gets called everytime the value of the HiddenField control changes between postbacks to the server by creating an event-handler for the ValueChanged event. Hidden field is also used many a times when we need to work with a value in both server side and client side.
Note: In order to use HiddenField ou've to use HTTP-Post method to post web page. Unlike to its name, its value is not hidden.
Whitepapers/Blogs
The ASP.NET Wiki was started by Scott Hanselman in February of 2008. The idea is that folks spend a lot of time trolling the blogs, googlinglive-searching for answers to common "How To" questions. There's piles of fantastic community-created and MSFT-created content out there, but if it's not found by a search engine and the right combination of keywords, it's often lost.
The ASP.NET Wiki articles moved to CodeProject in October 2013 and will live on, loved, protected and updated by the community.
Submit an article or tip
