debug message in checkbox.lzx

[k07032]

I have a series of checkbox that are created inside a gridcolumn. The debug window show there are a couple errors in lz/checkbox.lzx. Any idea?

lz/checkbox.lzx:63:reference to undefined property 'style'
lz/checkbox.lzx:51:reference to undefined property 'style'

Here is my code:

<canvas debug="true">
<debug x="350" y="350"/>
<view id="view1">
<grid datapath="ds:/dataset/map/entry/map" contentdatapath="entry" id="grid1" showvlines="true" showhlines="true" shownitems="15" height="100%">
<gridcolumn showheader="false">
<checkbox id="ckbJob"></checkbox>
</gridcolumn>
<gridcolumn showheader="false">
<text datapath="id/text()" />
</gridcolumn>
<gridcolumn showheader="false">
<text datapath="name/text()" />
</gridcolumn>
</grid>
</view>
</canvas>

Appreciate any helps/suggestions.