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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.
Using the properties window, set the IDs of the controls as .lblmessage. The markup file (.aspx): using System; using System. The Application directive defines application-specific attributes. This could appear either in the file for application-wide linking, in the page file, a user control file for linking to a page or user control.
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.
At run-time, the content file is parsed and transformed into a page class.
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.
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.