# Class Ext.list.Column

Package: | Ext.list
Defined In: | Column.js
Class: | Column
Subclasses: | BooleanColumn, DateColumn, NumberColumn
Extends: | Object

This class encapsulates column configuration data to be used in the initialization of a ListView.

While subclasses are provided to render data in different ways, this class renders a passed data field unchanged and is usually used for textual columns.

## Config Options

Config Options | Defined By
--- | ---
| align : String Set the CSS text-align property of the column. Defaults to `'left'`. | Column
| cls : String Optional. This option can be used to add a CSS class to the cell of each row for this column. | Column
| dataIndex : String Required. The name of the field in the ListViews's Ext.data.Store's Ext.data.Record definition from which to draw the... Required. The name of the field in the ListViews's Ext.data.Store's Ext.data.Record definition from which to draw the column's value. | Column
| header : String Optional. The header text to be used as innerHTML (html tags are accepted) to display in the ListView. Note: to have... Optional. The header text to be used as innerHTML (html tags are accepted) to display in the ListView. Note: to have a clickable header with no text displayed use `' '`. | Column
| tpl : String Optional. Specify a string to pass as the configuration string for Ext.XTemplate. By default an Ext.XTemplate will b... Optional. Specify a string to pass as the configuration string for Ext.XTemplate. By default an Ext.XTemplate will be implicitly created using the `dataIndex`. | Column
| width : Number Optional. Percentage of the container width this column should be allocated. Columns that have no width specified wi... Optional. Percentage of the container width this column should be allocated. Columns that have no width specified will be allocated with an equal percentage to fill 100% of the container width. To easily take advantage of the full container width, leave the width of at least one column undefined. Note that if you do not want to take up the full width of the container, the width of every column needs to be explicitly defined. | Column

## Public Properties

This class has no public properties.

## Public Methods

This class has no public methods.

## Public Events

This class has no public events.