ASP

WEB CONTROLS

ASP.NET provides several controls to choose from in developing a web page in ASP. Many features that the ASP.NET environment provides are not available in other environments. A list of the most common Web Controls can be seen below.

FUNCTION CONTROL DESCRIPTION

Text Display Label Displays text that users can not directly edit.

Text Edit TextBox Displays text entered at design time that can be edited by users at run-time or changed programmatically.

Selection from a List DropDownList Allows users to either select from a list or enter text

ListBox Displays a list of choices.

Graphics Displays Image Displays an Image

AdRotator Displays a sequence of images

Value Setting CheckBox Displays a box that users can click to turn an option on or off

RadioButton Displays a single button that can be selected or not

Date Setting Calendar Displays a calendar to allow users to select a date

Commands Button Used to perform a task

LinkButton Like a button control but has the appearance of a hyperlink

ImageButton Like a button control but has the appearance of an image

Navigation Controls HyperLink Creates Web navigation links

Table Controls Table Creates a table

TableCell Creates an individual table cell

TableRow Creates an individual row in a table

Grouping other controls CheckBoxList Creates a collection of check boxes

Panel Creates a boarderless division on the form thaty serves as a container for other controls

RadioButtonList Creates a group of radio buttons. Inside the group only one can be selected

List Controls Repeater Displays information from a data set using a set of HTML elements and controls that the programmer specifies, repeating the elements for each record in the data set

DataList Like the Repeater control but with the ability to display information in a table

DataGrid Displays information, usually data-bound, in tabular formas with columns.

In order to use a control in ASP, the programmer will have to use VisualStudio .NET or can use the command <asp:### > with the ### replaced by the control function listed above.

Web controls can also discover the specific browser a user is using in order to take advantage of features of the browser. Writing Web controls is not that difficult since the .NET Framework has prefabricated base classes for the control’s necessary infrastructure.

FUNCTION	CONTROL	DESCRIPTION
Text Display	Label	Displays text that users can not directly edit.
Text Edit	TextBox	Displays text entered at design time that can be edited by users at run-time or changed programmatically.
Selection from a List	DropDownList	Allows users to either select from a list or enter text
	ListBox	Displays a list of choices.
Graphics Displays	Image	Displays an Image
	AdRotator	Displays a sequence of images
Value Setting	CheckBox	Displays a box that users can click to turn an option on or off
	RadioButton	Displays a single button that can be selected or not
Date Setting	Calendar	Displays a calendar to allow users to select a date
Commands	Button	Used to perform a task
	LinkButton	Like a button control but has the appearance of a hyperlink
	ImageButton	Like a button control but has the appearance of an image
Navigation Controls	HyperLink	Creates Web navigation links
Table Controls	Table	Creates a table
	TableCell	Creates an individual table cell
	TableRow	Creates an individual row in a table
Grouping other controls	CheckBoxList	Creates a collection of check boxes
	Panel	Creates a boarderless division on the form thaty serves as a container for other controls
	RadioButtonList	Creates a group of radio buttons. Inside the group only one can be selected
List Controls	Repeater	Displays information from a data set using a set of HTML elements and controls that the programmer specifies, repeating the elements for each record in the data set
	DataList	Like the Repeater control but with the ability to display information in a table
	DataGrid	Displays information, usually data-bound, in tabular formas with columns.