Add workflow job id to the tasks screen

System

I was able to add workflow description as well as the workflow activation date to the tasks screen. However, when I tried to insert the workflow id to the tasks screen, I am getting 0 value, Here is the copy of the code I added to ui_custom.xml file. please advice. I tried to replace type with link and there is no luck.

<iwov-insert-before id="description">
<column id="wfid"
label="Job ID"
description="Job ID"
type="string"
sortable="true"
property="workflow.id"
width="6%"
align="left" />
</iwov-insert-before>



thanks
Jason