PLZ SOLVE MY QUERY...........
if i give input like matnr in selection screen as to get upto labst1
fcat-row_pos = 1.
FCAT-SELTEXT_L = 'SRL_NO'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'SLNO'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'PARENT'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'PMATNR'.
FCAT-TABNAME = 'IT_FINAL'.
FCAT-NO_OUT = 'X'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Tube S/A'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'IDNRK1'.
FCAT-IFIELDNAME = 'IDNRK1'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Tube Quantity'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'LABST1'.
FCAT-FIELDNAME = 'LABST1'.
FCAT-NO_ZERO = 'X'.
FCAT-FIX_COLUMN = 'X'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
clear fcat.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'P.Rod S/A'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'IDNRK2'.
FCAT-IFIELDNAME = 'IDNRK2'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'P.Rod S/A Quantity'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'LABST2'.
FCAT-TABNAME = 'IT_FINAL'.
FCAT-NO_ZERO = 'X'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Port A/S'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'IDNRK4'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Port Quantity'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'LABST4'.
FCAT-NO_ZERO = 'X'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Pipe'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'IDNRK5'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Pipe Quantity'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'LABST5'.
FCAT-NO_ZERO = 'X'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Pipe S/A'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'IDNRK6'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Pipe S/A Quantity'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'LABST6'.
FCAT-NO_ZERO = 'X'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Spare Seal Kit'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'IDNRK3'.
FCAT-TABNAME = 'WA_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.
w_pos = w_pos + 1.
FCAT-SELTEXT_L = 'Pipe S/A Quantity'.
FCAT-COL_POS = W_POS.
FCAT-FIELDNAME = 'LABST3'.
FCAT-NO_ZERO = 'X'.
FCAT-TABNAME = 'IT_FINAL'.
LAYOUT1-COLWIDTH_OPTIMIZE = 'X'.
APPEND FCAT.
CLEAR FCAT.