formatter function

[wel]

I can not find explaining in the documentation, what the formatter function is doing in this combobox ?

Code:

<th data-options="field:'work_group_id',width:10,
            formatter:function(value,row){
               return row.work_group;
            },
            editor:{
            type:'combobox',
            options:{
            valueField:'work_group_id',
            textField:'work_group',
            method:'get',
            url:'pages/work_groups.php',
            required:true
          }
    }">Groups</th>

</tr>

[aswzen]

that is a datagrid column formatter not a combobox formatter..

[wel]

many thanks