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## RichFaces ( Legacy URL )
Tag componentControl

The <rich:componentControl> allows to call JavaScript API functions on components after some defined events.

Tag Information
Tag Class | org.richfaces.taglib.ComponentControlTag
TagExtraInfo Class | None
Body Content | JSP
Display Name | None

Attributes
Name | Required | Request-time | Type | Description
attachTiming | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Defines the page loading phase when componentControl is attached to another component. Default value is "onavailable"
attachTo | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Client identifier of the component or id of the existing DOM element that is a source for given event. If attachTo is defined, the event is attached on the client according to the attachTiming attribute. If attachTo is not defined, the event is attached on the server to the closest in the component tree parent component.
binding | false | false | `javax.el.ValueExpression` (must evaluate to `javax.faces.component.UIComponent`) | The attribute takes a value-binding expression for a component property of a backing bean
disableDefault | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | Disable default action for target event ( append "return false;" to JavaScript )
event | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | The Event that is used to trigger the operation on the target component
for | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Client identifier of the target component.
id | false | false | `java.lang.String` | Every component may have a unique id that is automatically created if omitted
name | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | The optional name of the function that might be used to trigger the operation on the target component
operation | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | The function of JavaScript API that will be invoked. The API method is attached to the 'component' property of the root DOM element that represents the target component. The function has two parameters - event and params. See: 'params' attribute for details.
params | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | The set of parameters passed to the function of Javascript API that will be invoked. The JSON syntax is used to define the parameters, but without open and closed curve bracket. As an alternative, the set of f:param can be used to define the parameters passed to the API function. If both way are used to define the parameters, both set are concatenated. if names are equals, the f:param has a priority.
rendered | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | If "false", this component is not rendered

Variables
| No Variables Defined.

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