Panel Controls

The Panel control is used as a container for other controls much as a <div> (or a <span> to a lesser extent) acts in plain HTML. It serves several functions:

  • To control the visibility of the controls it contains

  • To control the appearance of the controls it contains

  • To make it easier to generate controls programmatically

The Panel control is derived from WebControl and has the read/write properties shown in Table 5-1. The Panel control has no methods or events not inherited from the Control or WebControl class. Specifically, there are no events raised by user interaction.

Table 5-1. Properties of the Panel control not inherited from Control or WebControl

Name

Type

Values

Description

BackImageUrl

String

 

The URL of an image to display as the background of the panel. If the image is smaller than the panel, it will be tiled.

Direction

ContentDirection

LeftToRight, RightToLeft, NotSet

The direction to display text in a container control. Default is NotSet.

GroupingText

String

 

Causes the Panel to render to the browser as a <fieldset> element rather than a <div> element. The value of this property is used for the <legend> element.

HorizontalAlign

HorizontalAlign

Center, Justify, Left, NotSet, Right

Specifies the horizontal alignment of the contents, overriding any CSS styles that are already set on it. Default is NotSet. Note there is no VerticalAlign property.

ScrollBars

ScrollBars

Auto, Both, Horizontal, None, Vertical

Specifies the visibility and location of scroll bars. Default value is None ...

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