Using Boolean variable for checkbox

Dear Members,

I am trying to add new work item and workflow in RTC. I could add custom types and attributes and enable them in the work item in "Editor presentations".

I am having problems with adding a "Boolean" attribute for a checkbox and enable that boolean attribute in editor presentation. I can add the attribute and display it on the screen.

But when I select the checkbox in runtime in the work item, the values (True / false) of the checkbox are not saved and displayed. Say if I check the checkbox and save the work item, it doesnt appear checked when I open the work item the next time.

Could someone help me to solve the bug.

Regards
Chandra