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[chromium-blink-merge.git] / third_party / polymer / v1_0 / components-chromium / iron-selector / README.md
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1 iron-selector
2 =============
4 `iron-selector` is an element which can be used to manage a list of elements
5 that can be selected.  Tapping on the item will make the item selected.  The `selected` indicates
6 which item is being selected.  The default is to use the index of the item.
8 Example:
10 ```html
11 <iron-selector selected="0">
12   <div>Item 1</div>
13   <div>Item 2</div>
14   <div>Item 3</div>
15 </iron-selector>
16 ```
18 If you want to use the attribute value of an element for `selected` instead of the index,
19 set `attrForSelected` to the name of the attribute.  For example, if you want to select item by
20 `name`, set `attrForSelected` to `name`.
22 Example:
24 ```html
25 <iron-selector attr-for-selected="name" selected="foo">
26   <div name="foo">Foo</div>
27   <div name="bar">Bar</div>
28   <div name="zot">Zot</div>
29 </iron-selector>
30 ```
32 `iron-selector` is not styled. Use the `iron-selected` CSS class to style the selected element.
34 Example:
36 ```html
37 <style>
38   .iron-selected {
39     background: #eee;
40   }
41 </style>
43 ...
45 <iron-selector selected="0">
46   <div>Item 1</div>
47   <div>Item 2</div>
48   <div>Item 3</div>
49 </iron-selector>
50 ```