assigning a value using a button click in line level

mkpjsr

During resell of an item from sales invoice screen in line level using function copy document aginst poste return receiot we fetch the data. after fetching data i want to assign some value into the unit price column of line level by a button click


plz guide me how to assign value using a button click into the line level.

mohana_cse06

Write in Onpush button of the code

PurchLine.RESET;
PurchLine.SETRANGE("Document Type","Document Type");
PurchLine.SETRANGE("Document No.","No.");
IF PurchLine.FINDFIRST THEN BEGIN
  PurchLine."Unit Price" := Your value;
  PurchLine.MODIFY;
END;