C# 4 and .NET 4

asP.neT Web forms ❘ 1161
ConTrol
Table
BulletedList
HiddenField
Literal
Calendar
AdRotator
FileUpload
Wizard
Xml
MultiView
Panel
PlaceHolder
View
desCriPTion
Specifies a table. Use this in conjunction with TableRow and TableCell at
design time, or programmatically assign rows using the Rows property of type
TableRowCollection. You can also use this property for runtime modifications. This
control has several styling properties unique to tables, as do TableRow and TableCell.
Formats a list of items as a bulleted list. Unlike the other list controls, this one has a
Click event that you can use to determine what item a user has clicked during a postback.
Other properties and events are the same as for DropDownList.
Used to provide a hidden field, to store nondisplayed values for any reason. These
can be very useful to store settings that would otherwise need an alternative storage
mechanism to function. Use the Value property to access the stored value.
Performs the same function as Label, but has no styling properties because it derives
from Control, not WebControl. You set the text to display for this control with the
Text property.
Allows the user to select a date from a graphical calendar display. This control has
many style-related properties, but essential functionality can be achieved using the
SelectedDate and VisibleDate properties (of type System.DateTime) to get
access to the date selected by the user and the month to display (which will always
contain VisibleDate). The key event to hook up to is SelectionChanged. Postback
from this control is automatic.
Displays several images in succession, with a different one displayed after each server
round trip. Use the AdvertisementFile property to specify the XML file describing
the possible images, and the AdCreated event to perform processing before each
image is sent back. You can also use the Target property to name a window to open
when an image is clicked.
This control presents the user with a text box and a Browse button, such that a
file to be uploaded can be selected. After the user has done this, you can look at
the HasFile property to determine if a file has been selected, and then use the
SaveAs() method from code-behind to perform the file upload.
An advanced control used to simplify the common task of getting several pages of user
input in one go. You can add multiple steps to a wizard, which can be presented to a
user sequentially or nonsequentially, and rely on this control to maintain state and so on.
A more complicated text display control, used for displaying XML content, which
may be transformed using an XSLT style sheet. The XML content is set using one of
the Document, DocumentContent, or DocumentSource properties (depending
on the format of the original XML), and the XSLT style sheet (optional) using either
Transform or TransformSource.
A control that contains one or more View controls, where only one View is rendered
at a time. The currently displayed view is specified using ActiveViewIndex, and
you can detect if the view changes (perhaps because a Next link on the currently displayed
view is clicked) with the ActiveViewChanged event.
Adds a container for other controls. You can use HorizontalAlign and Wrap to
specify how the contents are arranged.
This control doesn’t render any output but can be handy for grouping other controls
together, or for adding controls programmatically to a given location. Contained controls
can be accessed using the Controls property.
A container for controls, much like PlaceHolder, but designed for use as a child of
MultiView. You can tell if a given View is being displayed using Visible, or use the
Activate and Deactivate events to detect changes in activation state.
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