Hi Faisal,
lr_entity is bol property access and its not having method collection method.
below is my data defination of required class interface's.
DATA: lr_current TYPE REF TO if_bol_bo_property_access,
lr_cw TYPE REF TO cl_bsp_wd_collection_wrapper,
lr_it YPE REF TO if_bol_bo_col_iterator.
i am changing calue of field in lr_current
same was reflecting in lr_cw
but not visible on UI
lr_cw->publish_current( ).
Please correct me if I am wrong.
BR
Gaurav