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what is the purpose of this (?=) ?

hi friends...

I am practising the WDA programs...

in that they hav used this code

data wd_table type ref to cl_wd_table.

wd_table ?= view->get_element( 'TABLE' ).

wd_this->table_control ?= wd_table->_method_handler.

wd_this->table_control->set_key_attribute_name( 'MATNR' ).

i don't know why they used this code...

here ( ?= ) what is the purpose of this ?= ?

what is the purpose of this class cl_wd_table ?

i am not clear with all statement, can you guide me..

i am waiting for ur reply



Former Member
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