DOM Option 对象(HTML DOM Option 对象)W3POP.COM

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DOM Option 对象

作者:w3pop.com 翻译/整理:w3pop.com 发布:2007-04-28 浏览:5630 ::

DOM 对象 DOM Screen 对象

Option 对象

The Option object represents a selectable option in a drop-down list in an HTML form. For each instance of an <option> tag in an HTML form, an Option object is created.
Option对象代表HTML表单中的可选项。HTML表单中只要出现<option>标签就有Option对象被建立

You can access an Option object by indexing the elements array (by number or name) of the corresponding form or by using getElementById().
你可以从表单数组的数字或是名称来访问Option对象，或是使用getELmentById()来访问它

IE: Internet Explorer, F: Firefox, N: Netscape, W3C: World Wide Web Consortium (Internet Standard).

Option 对象属性

Property 属性	Description 描述	IE	F	N	W3C
defaultSelected	Sets or returns the value of the selected attribute of the option 设置或是返回Optionselected属性的值	3	1	6	Yes
disabled	Sets or returns a Boolean value that specifies whether the option should be disabled 设置或返回一个布耳值判断Option是否禁用	5	1	6	Yes
form	Returns a reference to the form that contains the option 返回包含Option表单的参考	3	1	6	Yes
id	Sets or returns the id of the option (In IE 4 this property is read-only) 设置或返回Option的id(在IE4中这个属性为只读)	4	1		No
index	Sets or returns the position of the option in the select box 设置或返回Option在select框中的位置	3			Yes
label	Sets or returns a label for the option object 设置或返回Option对象的label	6			Yes
selected	Sets or returns the current state of the option 设置或返回Option的当前状态（是否为选中）	3	1	6	Yes
text	Sets or returns the text value for the <option> tag 设置或返回Option标签的文字值	3	1	6	Yes
value	Sets or returns the value to be returned to the server when an option is selected and the form is submitted 设置或返回当被选中的Option提交到服务器时它所包含的值	3	1	6	Yes

Option 对象方法

Method 方法	Description 描述	IE	F	N	W3C
click()	Simulates a mouse-click on the option 模仿鼠标点击Option	4			No

DOM 对象 DOM Screen 对象