More Info about Dropdown List Box

Browser Compatibility | Editability in Style Editor | Accessibility – 508 Support


Browser Compatibility

Netscape 4.7

The disabled version of the dropdown list box is not available for Netscape 4.7.

Netscape 6.1 and 6.2

In Netscape Version 6.1 and 6.2, the dropdown list box looks slightly different than the standard control.

To see examples of standard dropdown list boxes click here.

 

Figure 1: Netscape 6.1/6.2 example of an enabled dropdown list box Figure 2: Netscape 6.1/6.2 example of a
disabled dropdown list box

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Editability in Style Editor

In the Style Editor, the dropdown list box does not appear in the list of customizable elements directly. No control-specific styles exist for this element, only common styles are used.

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Accessibility – 508 Support

Dropdown list boxes have to be used in combination with the label element which points to the assigned listbox. This ensures, that screenreaders are aware of the relationship between the both elements and can read the correct label to the according dropdown list box.

  • Keyboard: The dropdown list box inserted into the accessibility hierarchy by default.
  • Default Description: Is provided by the HTMLB rendering engine.
  • Application-specific Description: Set an additional description using the setTooltip method if needed.
  • Label: Has to be connected to a label control (use method setLabelFor for identifying the corresponding dropdown list box).

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