Set method not setting value to field ,dref not bound

Hi there,

Requirement : Add date field to reference object block ,component BTREFOBJ.

AET wont support to add field to BTREFOBJ ,so I added date field in BOL Structure CRMST_REFOBJ_BTIL and added date field to config . I can choose the date , as soon as i hit enter date disappears. On debug i found In set method dref is not bound. Suggest me how to fix the issue.

Thanks,

Naveen.