Good day master's.
How can I add string in my main string? 
Like in C#.net (text1.text += "some text";)
I tried:
DATA: DLAST TYPE STRING,
DFIRST TYPE STRING,
DNAME TYPE STRING.
LOOP AT IT_ITEM WHERE LIFNR NE ''.
SELECT SINGLE NAME1 INTO DNAME FROM LFA1
WHERE LIFNR EQ IT_ITEM-LIFNR.
CONCATENATE DNAME ' / ' INTO DFIRST.
MOVE DFIRST TO DLAST.
CLEAR: DFIRST,
DNAME.
ENDLOOP.
But no good.
Please help!!! 
Thanks in advance.