Introduction The Hidden Field control Provides you with a way to store information in the page Without displaying it. This control enables a developer to store a non Displayed value. You can use the Hidden Field control to store state value. The value of Hidden Field control is rendered to the Client Browser. So its not suitable for storing security sensitive value. this control is used to store a value that needs to be persisted across posts to the server. It is rendered as an element. Normally View State, Session State and Cookies are used to maintain the state of a web Form page. However if these methods are disabled or are not available you can use the Hidden Field control to store state value. To specify the value for Hidden Field control, use the value property. You can provide a routine that gets called every time the value of the Hidden Field control changes between posts to the server by creating an Event Handler for the ValueChanged Event. Getting Started Here we are discussing an example in which TextBox value will store in Hidden Field and when we click Button than TextBox value is displayed in Label.