For handling events, there are in-built attributes and event handlers. Items in a List Item Collection are numbered from 0.Event handler is coded to respond to an event, and take appropriate action on it. When the items into a list box are loaded using strings like: lstcolor. Add("Blue"), then both the Text and Value properties of the list item are set to the string value you specify.By default, Visual Studio creates an event handler by including a Handles clause on the Sub procedure. To set it differently you must create a list item object and then add that item to the collection.
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.
take place, it sends a message, which is displayed by the label control. These controls contain a collection of List Item objects that could be referred to through the Items property of the control. NET directives are instructions to specify optional settings, such as registering a custom control and page language.
When the button is clicked, the Button_Click event is raised and that also sends a message to be displayed on the label. These settings describe how the web forms (.aspx) or user controls (.ascx) pages are processed by the . The syntax for declaring a directive is: In this section, we will just introduce the ASP.
Create a new website and drag a label control and a button control on it from the control tool box. Set the Text property of the Button control as 'Click'. NET directives and we will use most of these directives throughout the tutorials. The basic syntax of Application directive is: The Assembly directive links an assembly to the page or the application at parse time.