HTML Forms: Multiple Selection Window

This window allows multiple items to be selected. The only difference between this input element and the previous SELECT element is the introduction of the SIZE option. This specifies how many lines of the list to display in a scrollbox.

<FORM	action="test.cgi">
	<SELECT	NAME="group"	SIZE=3	MULTIPLE>
		<OPTION>	Title
		<OPTION>	Description
		<OPTION>	URL
		<OPTION>	Category
	</SELECT>
</FORM>

MULTIPLE

Specifies that multiple options can be selected, as opposed to the previous SELECT example, where only one option could be selected from the menu.

SIZE

The number of lines to display in the scrollbox.

OPTION

Specifies a list option.

VALUE

Specifies the value of the option to be sent to the server.

If not defined, the name of the option is sent as the value.

SELECTED

This tag defaults an OPTION to be selected.

• On some browsers, it may be necessary to hold down the CONTROL or SHIFT key to select multiple items.

• This input element is good for lists with many options, because you can control how many to display at a time.

• If multiple items are selected, they will each be passed to the server with the same name. The decoding script has to be smart enough to recognize multiple values associated with the same name.