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The ASP tag for a button control: Some events cause the form to be posted back to the server immediately, these are called the postback events. For example, the change events or selection events such as Text Box. The default event for the Page object is Load event. For example, default event for the button control is the Click event. Common properties of List Item Collection: A radio button list presents a list of mutually exclusive options.The default event handler could be created in Visual Studio, just by double clicking the control in design view. A check box list presents a list of independent options. For example, consider the HTML input control: All ASP.

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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.

NET server controls allow calling client side code written using Java Script or VBScript. NET server controls use client side scripting to provide response to the users without posting back to the server. Apart from these scripts, the Button control has a property On Client Click, which allows executing client-side script, when the button is clicked.

In this chapter, we will discuss the basic controls available in ASP. A text box control can accept one or more lines of text depending upon the settings of the Text Mode attribute.

Consider the simple page: tags contain the hidden fields which store the view state and validation information. NET provides three types of button control: Text box controls are typically used to accept input from the user.

The HTML controls such as the header tags, anchor tags, and input elements are not processed by the server but are sent to the browser for display.

Linq; namespace eventdemo Execute the page to see the effects. The HTML server controls are basically the standard HTML controls enhanced to enable server side processing.

NET runtime codes, and incorporates the state of the server side components in hidden fields. The Web Control class itself and some other server controls that are not visually rendered are derived from the System. List boxes and drop-down lists contain one or more list items.

This way, the server becomes aware of the overall application state and operates in a two-tiered connected way. NET component model provides various building blocks of ASP. Basically it is an object model, which describes: All ASP. These lists can be loaded either by code or by the List Item Collection editor.

This class, along with the class definition in the code file, and system generated code, together make the executable code (assembly) that processes all posted data, generates response, and sends it back to the client.

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