/** * @class Ext.grid.column.RowNumberer * @extend Ext.grid.column.Number * @xtype rownumberer * * A special type of Grid {@link Ext.grid.column.Column} that provides automatic * row numbering. * * Usage: * * columns: [ * {xtype: 'rownumberer'}, * ... * ] * */ /** * @cfg {Boolean} [menu=null] * There is no column menu is disabled by default for check columns. */