loadXML

Hi,
I’ve loaded my grid by XML . But when I add a new row, Grid doesn’t show CHECKBOX.
It is not true about combobox.

<?xml version="1.0" encoding="utf-8"?>
<head>
    <settings>
       <colwidth>px</colwidth>
    </settings>
    <column width="50" type="ro" align="center" sort="str" >row</column>   
    <column  width="160" type="edn" align="center" sort="str" id="fa_name" >name</column>
    <column width="50" type="ch" align="center" sort="str" xmlcontent="1" id="fa_active">فعال</column>
     </head>
1 bbbbbbbbbbbbbb 1 2 ffffffffffffffff 1 3 cccccccccccccccc 1 4 ddddddddddd 1 5 wwwwwww 1

The following code for adding a new row should work well:
mygrid.addRow(new_id,["","",false])