OS Login id in Web Dynpro Abap

Hi all
I want to get system OS login id in WDA. Please sugest me to get. I got this method but it did not work in WDA, which is working fine in ABAP.
DATA: username TYPE string.
CALL METHOD CL_GUI_FRONTEND_SERVICES=>GET_USER_NAME
   CHANGING
     USER_NAME    = username
   EXCEPTIONS
     CNTL_ERROR   = 1
     ERROR_NO_GUI = 2
     others       = 3.
IF SY-SUBRC ne 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
            WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD CL_GUI_CFW=>UPDATE_VIEW
                             EXCEPTIONS
                               CNTL_SYSTEM_ERROR = 1
                               CNTL_ERROR        = 2
                               others            = 3.
Thanks in advance
Indiranjthn

Hallo Jagannatha,
the new table feature is available in SAP NetWeaver 7.0 EhP2 (SAP ERP 6.0 EhP5, SAP Business Suite 7i2010) named 'TableMultiEditorCell'. See [SAP Online Help|http://help.sap.com/saphelp_nw70ehp2/helpdata/en/9b/46bb0d339b42cc8d30636ca0c9f5b6/frameset.htm] for more details ...
"This UI element is a table cell variant that enables several UI elements to be placed in one table cell. This type of cell can be used for "one click actions". ...
Regards, Bertram

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OS Login id in Web Dynpro Abap

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