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## RichFaces ( Legacy URL )
Tag columns

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

Attributes
Name | Required | Request-time | Type | Description
begin | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | The first iteration item
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
breakBefore | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | if "true" next column begins from the first row
colspan | false | false | `javax.el.ValueExpression` (must evaluate to `int`) | Corresponds to the HTML colspan attribute
columns | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | Count of columns
comparator | false | false | `javax.el.ValueExpression` (must evaluate to `java.util.Comparator`) | Defines value binding to the comparator that is used to compare the values
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)
end | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | The last iteration item
filterBy | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | Defines iterable object property which is used when filtering performed.
filterEvent | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Event for filter input that forces the filtration (default = onchange)
filterExpression | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | Attribute defines a bean property which is used for filtering of a column
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
footerClass | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Space-separated list of CSS style class(es) that are be applied to any footer generated for this table
headerClass | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Space-separated list of CSS style class(es) that are be applied to any header generated for this table
id | false | false | `java.lang.String` | Every component may have a unique id that is automatically created if omitted
index | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | The current counter
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
rowspan | false | false | `javax.el.ValueExpression` (must evaluate to `int`) | Corresponds to the HTML rowspan attribute
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
sortBy | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Attribute defines a bean property which is used for sorting of a column
sortExpression | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | DEPRECATED(use sortBy)Attribute defines a bean property which is used for sorting of a column
sortIcon | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Defines sort icon
sortIconAscending | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Defines sort icon in ascending order
sortIconDescending | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Defines sort icon in descending order
sortOrder | false | false | `javax.el.ValueExpression` (must evaluate to `org.richfaces.model.Ordering`) | SortOrder is an enumeration of the possible sort orderings.
sortable | false | false | `javax.el.ValueExpression` (must evaluate to `boolean`) | Boolean attribute. If "true" it's possible to sort the column content after click on the header. Default value is "true"
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
value | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | The current value for this component
var | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.Object`) | The current variable
width | false | false | `javax.el.ValueExpression` (must evaluate to `java.lang.String`) | Attribute defines width of column.

Variables
| No Variables Defined.

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