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## RichFaces
Tag columnGroup

The <rich:columnGroup> component combines columns in one row to organize complex subparts of a table.

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

Attributes
Name | Required | Request-time | Type | Description
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
columnClasses | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Comma-delimited list of CSS style classes that are be applied to the columns of this table. A space separated list of classes may also be specified for any individual column. If the number of elements in this list is less than the number of columns specified in the "columns" attribute, no "class" attribute is output for each column greater than the number of elements in the list. If the number of elements in the list is greater than the number of columns specified in the "columns" attribute, the elements at the position in the list after the value of the "columns" attribute are ignored
dir | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Direction indication for text that does not inherit directionality. Valid values are "LTR" (left-to-right) and "RTL" (right-to-left)
filterMethod | false | false | `javax.el.MethodExpression` (signature must match `boolean filterMethod(java.lang.Object)`) | This attribute is defined with method binding. This method accepts on Object parameter and return boolean value
filterValue | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Defines current filtering value
id | false | false | `java.lang.String` | Every component may have a unique id that is automatically created if omitted
lang | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Code describing the language used in the generated markup for this component
rendered | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | If "false", this component is not rendered
rowClasses | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | A comma-delimited list of CSS style classes that is applied to popup table rows. A space separated list of classes may also be specified for any individual row. The styles are applied, in turn, to each row in the table. For example, if the list has two elements, the first style class in the list is applied to the first row, the second to the second row, the first to the third row, the second to the fourth row, etc. In other words, we keep iterating through the list until we reach the end, and then we start at the beginning again
selfSorted | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | Manages if the header of the column is clickable, icons rendered and sorting is fired after click on the header. You need to define this attribute inside <rich:dataTable> component
sortOrder | false | false | `javax.el.ValueExpression` (must evaluate to `org.richfaces.model.Ordering`) | SortOrder is an enumeration of the possible sort orderings.
style | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | CSS style(s) is/are to be applied when this component is rendered
styleClass | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Corresponds to the HTML class attribute
title | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Advisory title information about markup elements generated for this component

Variables
| No Variables Defined.

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