CLOSE all

USE alltrim(thisform.text5.value) in 0
USE alltrim(thisform.text6.value) in 0
xfileF=alltrim(thisform.text5.value)
  ? (xfileF)&&----->TABLE NAME IS BILL
 lcField = alltrim(thisform.text1.value)

xval=alltrim(thisform.text5.value)+"."+lcfield

xfile=alltrim(thisform.text6.value)

xval2=alltrim(thisform.text5.value)+"."+lcfield

replace IN (xfile) ;
   FOR EVAL(lcField)==LookUp(&xval, EVAL(lcField), &xval2) AND NOT EOF(alltrim(thisform.text5.value));
 newvalue with xfileF.BILL_VALUE&& not works
 *newvalue with BILL.BILL_VALUE&& IT WORKS

 newvalue with  xfileF+"."+BILL_VALUE &&&variable BIIL is not found 
 newvalue with BILL_VALUE&& BILL_VALUE "variable" is not found 
 newvalue with xfileF.BILL_VALUE&&"xfileFe" is not an object 
 newvalue with evaluate(xfileF+"." + BILL_VALUE)&&BILL_VALUE "variable" is not found