# r

## Tag columnGroup

- Description:

    The <r:columnGroup> component combines multiple columns in a single row to organize complex parts of a table. The resulting effect is similar to using the breakRowBefore attribute of the <r:column> component, but is clearer and easier to follow in the source code.

- Component Information
  Info | Value
  --- | ---
  Component Type | `org.richfaces.ui.ColumnGroup`
  Display Name | None
  Handler Class | None
  Renderer Type | `org.richfaces.ui.ColumnGroupRenderer`
  Description | The <r:columnGroup> component combines multiple columns in a single row to organize complex parts of a table. The resulting effect is similar to using the breakRowBefore attribute of the <r:column> component, but is clearer and easier to follow in the source code.

- Attributes
  Name | Required | Type | Description
  --- | --- | --- | ---
  `binding` | `false` | `javax.el.ValueExpression` (must evaluate to `javax.faces.component.UIComponent`) | The value binding expression used to wire up this component to a component property of a JavaBean class
  `id` | `false` | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | The component identifier for this component. This value must be unique within the closest parent component that is a naming container.
  `rendered` | `false` | `javax.el.ValueExpression` (must evaluate to `boolean`) | Flag indicating whether or not this component should be rendered (during Render Response Phase), or processed on any subsequent form submit. The default value for this property is true.

Output generated by Vdldoc View Declaration Language Documentation Generator.