Hi,
Create an attribute (say gr_view) of type ref to if_wd_view in your assistance class. Then in your WDDOINT method of view, write the below code to get the view reference:
data lr_view type ref to if_wd_view.
lr_view ?= wd_this->wd_get_api( ).
Now set this view reference to the attribute in assistance class
wd_assist->gr_view = lr_view.
Regards,
Kiran