Data element as ALV column header text
I need to display the header of columns in ALV as in the labels of a data element .
say I have a data element : zzname
the labels are : name, Name_short,Name_long .
How can I have the column header as 'Name_long' ?
its possible for a table and its field as below :
t_fieldcat-ref_fieldname = 'VBELN'.
t_fieldcat-ref_tabname = 'VBAP'.
But I need to have the label of the data element as the header text.
The data element is not yet used in any table .
How can I do this ?
Thanks in advance !