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Update 09.2-form-input-binding-sugar.md -> document checkedLink #1952

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zpao merged 2 commits into from
Aug 13, 2014
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Update 09.2-form-input-binding-sugar.md -> document checkedLink #1952

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Update 09.2-form-input-binding-sugar.md
slorber Jul 29, 2014
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Update 09.2-form-input-binding-sugar.md -> better checkedLink documen…
slorber Jul 30, 2014
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6 changes: 5 additions & 1 deletion docs/docs/09.2-form-input-binding-sugar.md
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Expand Up @@ -66,7 +66,11 @@ var WithLink = React.createClass({

`ReactLink` objects can be passed up and down the tree as props, so it's easy (and explicit) to set up two-way binding between a component deep in the hierarchy and state that lives higher in the hierarchy.

Note that `<input>` supports ReactLink for both `value` and `checked`.
Note that checkboxes have a special behavior regarding their `value` attribute, which is the value that will be sent on form submit if the checkbox is checked (defaults to `on`). The `value` attribute is not updated when the checkbox is checked or unchecked. For checkboxes, you should use `checkedLink` instead of `valueLink`:
```
<input type="checkbox" checkedLink={this.linkState('booleanValue')} />
```


## Under the Hood

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