The Web server control provides a container control within a Web Forms page that you can use as a parent for static text and for other controls. In addition, you can use the Panel control for a variety of other purposes.
Grouping Controls and Markup
You can manage a group of controls and associated markup as a unit by putting them in a Panel control and then manipulating the Panel control. For example, you can hide or show a group of controls inside a panel by setting the panel's property.
Forms with Default Buttons
You can put controls and controls inside the Panel control and then define a default button by setting the Panel control's property to the ID of a button in the panel. If users press ENTER while typing in a text box inside the panel, it has the same effect as if the user had clicked the specified default button. This can help users work more efficiently with entry forms.
Container for Dynamically Generated Controls
The Panel control provides a convenient container for controls that you create at run time. For details, see Adding ASP.NET Controls Programmatically.
Custom Areas on the Page
You can use the Panel control to create areas on the page that have custom appearance and behavior, such as the following:
Adding scrollbarsВ В В If you set the and properties to constrain the Panel control to a specific size, you can add scrollbars by setting the property.
Creating a grouping box with titleВ В В You can set the property to display a title. When the page renders, the Panel control is displayed with a box around it that contains a title with the text you specify.
You cannot specify both scrollbars and grouping text in the Panel control. If you set grouping text, it takes precedence over scrollbars.
Creating areas on the page with a custom color or other appearanceВ В В The Panel control supports appearance properties such as and that you can set to create a unique look for a region on a page.
Setting the GroupingText property automatically renders a border around the Panel control.