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To clear the concept, let us take an example of a shopping cart. Items are selected from a page, say the items page, and the total collected items and price are shown on a different page, say the cart page. Controls are also used for structural jobs, like validation, data access, security, creating master pages, and data manipulation. NET uses five types of web controls, which are: ASP. If the Checked attribute is set to true for multiple radio buttons in a group, then only the last one is considered as true.Only HTTP cannot keep track of all the information coming from various pages. NET session state and server side infrastructure keeps track of the information collected globally over a session. NET runtime carries the page state to and from the server across page requests while generating ASP. NET server controls with a visual aspect are derived from the Web Control class and inherit all the properties, events, and methods of this class. Basic syntax of check box: These control let a user choose from one or more items from the list. The code behind file contains the class definition. NET control tags and literals to form the structure of the page.The following table shows some of the default events for common controls: This example includes a simple page with a label control and a button control on it. These controls contain a collection of List Item objects that could be referred to through the Items property of the control.As the page events such as Page_Load, Page_Init, Page_Pre Render etc. Basic syntax of radio button list: The bulleted list control creates bulleted lists or numbered lists.NET controls are implemented as classes, and they have events which are fired when a user performs a certain action on them. Basic syntax of list box control: The List Item Collection object is a collection of List Item objects.For example, when a user clicks a button the 'Click' event is generated. Each List Item object represents one item in the list.

They are specifically converted to a server control by adding the attribute runat="server" and adding an id attribute to make them available for server-side processing.

The traditional and server HTML controls have the following events that can execute a script when they are raised: The content file contains the HTML or ASP.

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